1978 GMC P15 Drivetrains

Essential Drivetrains for 1978 GMC P15s

Spicer – SPICER U-JOINT (Part No.5-1310-1X)

SPICER U-JOINT

from

$44.99
SPICER U-JOINT

Richmond Gear – RngPnnInstlKt (Part No.83-1018-1)

RngPnnInstlKt

from

$182.99
RngPnnInstlKt

Driveworks – Universal Joint (Part No.DW-369)

Universal Joint

from

$15.99
DRIVEWORKS Universal Joints are designed to meet or exceed OE fit, form, and function. These universal joints are set to provide superior quality and easy installation. DRIVEWORKS Universal Joints are constructed from quality materials for extended durability. DRIVEWORKS Universal Joints are pre-lubricated with premium grease to provide a longer service life. The grease fittings are pre-installed to allow for easy maintenance (where applicable).

Product Features:
  • The cross is hot forged for the higher torque and horsepower
  • The bearing cups are made by cold forging, having higher strength and better rigidity
  • Bearig cups allow 360 lubricant distribution to bearing surfaces, and are precision-ground for maximum load-carrying capabilities
  • Lubrication grooves designed to ensure grease penetration to entire journal and needle bearings
  • Grease fitting in the cross allows for easy maintenance and the flexible use of the whole assembly
  • Snap rings are held to strict tolerances to ensure proper cup position and retention
  • Nitrile rubber seals to optimize grease retention and reduce contamination
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National – Multi Purpose Seal (Part No.8460N)

Multi Purpose Seal

from

$13.99
National has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.

Product Features:
  • Low swell in hydrocarbon fluids
  • Design type: spring loaded; multi-lip
  • Provides good low temperature capability
  • Temperature range: -40°F to 225°F; -40°C to 107°C
  • Delivers quality and reliable performance for every type of repair
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Richmond Gear – Differential Ring And Pinion (Part No.69-0204-1)

Differential Ring And Pinion

from

$344.99
Richmond Gear is the leading manufacturer of professional quality, high-performance drivetrain products. Our complete line of products ranges from high performance ring-and-pinion sets for serious street and racing applications to torque-hungry manual transmissions and components. Richmond Gear products have been winners both at the Daytona 500 and U.S. Nationals for decades. WINNERS RUN RICHMOND!

Product Features:
  • For over 80-years, the Richmond Double-Diamond logo has represented some of the highest quality gears in the racing industry. Winners Run Richmond!
  • The superior quality of Richmond gearsets is a result of outstanding design, world class manufacturing and an extensive testing process that is performed on all products.
  • Richmond performance gearsets have been winners for decades at: NHRA, NMRA, NMCA, Daytona 500, WISSOTA and U.S. Nationals.
  • Richmond Gear is a leading manufacturer of high performance ring and pinion gearsets and drivetrain components, backed by a two year warranty.
  • Engineered to perform faster and be more reliable, Richmond performance drivetrain products are the result of a continuous research and development program combined with state-of-the-art manufacturing capabilities.
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National – Multi Purpose Seal (Part No.7412S)

Multi Purpose Seal

from

$14.29
National has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.

Product Features:
  • Low swell in hydrocarbon fluids
  • Design type: spring loaded; multi-lip
  • Provides good low temperature capability
  • Temperature range: -40°F to 225°F; -40°C to 107°C
  • Delivers quality and reliable performance for every type of repair
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Anchor – Center Support Bearing Motor Mount: Center, 1 Piece (Part No.6027)

Center Support Bearing Motor Mount: Center, 1 Piece

from

$5.29
Center support bearings or Carrier Support Bearings are used when the driveshaft is split into two sections. It serves as a junction on the drive shaft between the transmission and the differential allowing the driveshaft to flex, relieving stress on other drive line components. Each part is engineered and designed to OE Standards. Applicable to AUTOCAR 84-88; CHECKER 55-82; CHEV 60-12; DODGE 87-97; GMC 67-05; MACK 80-83; PTRB 65-83; WHGM 88-95; WHIT 81-88;. Please verify your application.

Product Features:
  • MAXIMUM VIBRATION DAMPENING: Rubber cushion is made of high grade rubber that ensures maximum dampening of vibration and the ability to absorb over loads.
  • HEAVY GAUGE STEEL FRAME: The housing frame is made from heavy gauge steel with durability that extends the service life.
  • READY TO INSTALL: Most center supports include a sealed bearing and dust shield and are ready to install.
  • For Years: 1955-2012
  • Weight approx: 1 Lbs
  • CUSHION INSERT ONLY
  • FOR COMPLETE MOUNT SEE PART 6056
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Pro-King – Differential Cover Plug (Part No.742G484)

Differential Cover Plug

from

$6.59
Pro-King is the leading supplier of transmission and driveline products in the aftermarket.

Product Features:
  • All products are designed to meet or exceed OE quality, form, fit and funtion.
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National – Bearings (Part No.HM89410)

Bearings

from

$11.49
National Oil Seals & Bearings offer a full line of premium oil seals and bearings.

Product Features:
  • Premium bearing design matches OEM specifications
  • Precision manufactured using premium-grade steel for outstanding durability and performance
  • Crowned raceways and rollers to ensure even load distribution for maximum life
  • Industry leading coverage
  • Professional technicians know they can depend on National
See More

National – Bearings (Part No.M88010)

Bearings

from

$10.49
National Oil Seals & Bearings offer a full line of premium oil seals and bearings.

Product Features:
  • Premium bearing design matches OEM specifications
  • Precision manufactured using premium-grade steel for outstanding durability and performance
  • Crowned raceways and rollers to ensure even load distribution for maximum life
  • Industry leading coverage
  • Professional technicians know they can depend on National
See More

National – Shaft Repair Sleeve (Part No.99170)

Shaft Repair Sleeve

from

$38.99
National® has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.

Product Features:
  • Designed to repair damaged, grooved or worn shafts
  • Durable stainless steel construction for corrosion-free sealing surface that surpasses most original shaft specifications
  • Ideal for a shaft where indications of seal wear, such as tracks or grooves have developed
  • Ultra-thin construction (0.01/0.25mm wall thickness) allows original seal size to be used with minimal additional lip loading
  • Easy to install with removable flange and installation tool
  • Installation tool reduces sleeve distortion and allows for installation without removal from the shaft
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Dorman – Help – C.V. Joint Bolted Split Boot Kit Front Outer (Part No.03609)

C.V. Joint Bolted Split Boot Kit Front Outer

from

$34.99
Our CV Joint Boots provide various methods of eliminating the removal of the CV joint during installation. Uni-Fit boots can be stretched over the CV Joint and Quick Boots come in halves.

Product Features:
  • Save labor with easy installation methods
  • Comes with grease and clamps
  • Rugged silicone or neoprene materials offer a high resistance to cracking, rotting and leaking
  • The Speedi and Quick Boot are installed without special tools
See More

National – Bearings (Part No.A-5)

Bearings

from

$16.99
National Oil Seals & Bearings offer a full line of premium oil seals and bearings.

Product Features:
  • Premium bearing design matches OEM specifications
  • Precision manufactured using premium-grade steel for outstanding durability and performance
  • Crowned raceways and rollers to ensure even load distribution for maximum life
  • Industry leading coverage
  • Professional technicians know they can depend on National
See More

Dorman – Spindle Washer – I.D. 3/4 In. O.D. 1-21/32 In. Thickness 3/32 In. (Part No.618-005.1)

Spindle Washer - I.D. 3/4 In. O.D. 1-21/32 In. Thickness 3/32 In.

from

$3.79
This spindle nut washer is designed to match the fit and function of the original part on specified vehicles. Made of quality materials, it is engineered for reliable performance.

Product Features:
  • Direct replacement – this spindle nut washer matches the fit and function of the factory part on specified years, makes and models.
  • Ideal solution – this washer is a reliable replacement for an original part that is missing or has failed due to wear
  • Durable construction – this part is made from quality materials to ensure reliable performance and long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
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Pro-King – Differential Internal Nest Kit (Part No.742J717)

Differential Internal Nest Kit

from

$219.99
Pro-King is the leading supplier of transmission and driveline products in the aftermarket.

Product Features:
  • All products are designed to meet or exceed OE quality, form, fit and funtion.
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Pro-King – Differential Crush Sleeve (Part No.742J034)

Differential Crush Sleeve

from

$9.19
Pro-King is the leading supplier of transmission and driveline products in the aftermarket.

Product Features:
  • All products are designed to meet or exceed OE quality, form, fit and funtion.
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Dorman – Help – Auto Transmission Case Vent (Part No.14689)

Auto Transmission Case Vent

from

$6.99
This transfer case vent is designed to match the fit and function of the original vent on specified vehicles, and is engineered for durability and reliable performance.

Product Features:
  • Direct replacement – this transfer case vent is designed to match the fit and function of the original vent on specified vehicles.
  • Restores functionality – reliable replacement for an original vent that has failed due to blockage or fatigue
  • Durable construction – this part is made from quality materials to ensure reliable performance and long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
See More

National – Multi Purpose Seal (Part No.9613S)

Multi Purpose Seal

from

$7.99
National has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.

Product Features:
  • Low swell in hydrocarbon fluids
  • Design type: spring loaded; multi-lip
  • Provides good low temperature capability
  • Temperature range: -40°F to 225°F; -40°C to 107°C
  • Delivers quality and reliable performance for every type of repair
See More

Yukon Gear – 3 Qt – 80W90 Conventional Gear Oil With Posi Additive (Part No.15003)

3 Qt - 80W90 Conventional Gear Oil With Posi Additive

from

$57.99
3 Qt. Penzoil 80W90 conventional gear Oil. W/ bottle of Posi additive.

Product Features:
  • Includes three quarts of conventional oil and one 4oz bottle of Yukon positraction additive
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Felpro – Differential Cover Gasket (Part No.RDS 55028-1)

Differential Cover Gasket

from

$9.99
Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:
  • Meets or exceeds all original equipment specifications
  • Application specific design to ensure a perfect fit
  • Unsurpassed quality you can trust
  • Validated for fit, form and function
  • Each Fel-Pro gasket, no matter how small, is engineered to exacting standards with proprietary design, engineering and manufacturing processes
See More

FAG US – AXLE BEARING (Part No.FC67147)

AXLE BEARING

from

$36.49
AXLE BEARING

National – Bearings (Part No.307-L)

Bearings

from

$37.99
National Oil Seals & Bearings offer a full line of premium oil seals and bearings.

Product Features:
  • Premium bearing design matches OEM specifications
  • Precision manufactured using premium-grade steel for outstanding durability and performance
  • Controlled heat treating process for lasting performance and extended bearing life
  • Industry leading coverage
  • Professional technicians know they can depend on National
See More

Driveworks – Drive Shaft Center Support (Part No.S-HB-88107-E)

Drive Shaft Center Support

from

$42.99
Product Features:
  • Brand may vary by location
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Pro-King – Differential Ring Gear Bolt (Part No.742G935)

Differential Ring Gear Bolt

from

$1.99
Pro-King is the leading supplier of transmission and driveline products in the aftermarket.

Product Features:
  • All products are designed to meet or exceed OE quality, form, fit and funtion.
See More

Yukon Gear – Bearing Race Driver Set, 21 Piece (Part No.56030)

Bearing Race Driver Set, 21 Piece

from

$1566.99
21 Piece bearing race driver set. (Box wt: 140lbs) No return.

Product Features:
  • Bearing race driver set
  • 21 pieces
  • All steel construction
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Driveworks – Oil Seal Kit (Part No.S-5200)

Oil Seal Kit

from

$6.79
Value-priced seal meets all cataloged application requirements.

Product Features:
  • Brand may vary by location
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Pro-King – Differential Pinion Shim Kit (Part No.742G200A)

Differential Pinion Shim Kit

from

$18.49
Pro-King is the leading supplier of transmission and driveline products in the aftermarket.

Product Features:
  • All products are designed to meet or exceed OE quality, form, fit and funtion.
See More

Dorman – Spindle Nut 3/4 In.-20 Hex Size 1-1/16 In. (Part No.615-065.1)

Spindle Nut 3/4 In.-20 Hex Size 1-1/16 In.

from

$6.99
This spindle nut is designed to match the fit and function of the original part on specified vehicles. Made of quality materials, it is engineered for reliable performance.

Product Features:
  • Direct replacement – this spindle nut matches the fit and function of the factory part on specified years, makes and models.
  • Ideal solution – this nut is a reliable replacement for an original part that is missing or has failed due to fatigue
  • Durable construction – this part is made from quality materials to ensure reliable performance and long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
See More

Upgrade your 1978 GMC P15 with Top-Quality Drivetrains

When it comes to maintaining or upgrading your 1978 GMC P15, nothing is more important than using high-quality OEM or aftermarket parts that you can trust. Whether you’re repairing damage to your GMC or enhancing its overall performance, Drivetrains are key to keeping your P15 functioning at its best. At Advance Auto Parts, we offer a wide selection of 116 Drivetrains for the 1978 GMC P15, designed to meet your needs without breaking the bank. From Universal Joint replacements to CV Axles and Joints upgrades, we’ve got you covered with parts that fit your vehicle perfectly and ensure long-lasting performance.

Affordable Prices and Wide Selection

Shopping for Drivetrains for any vehicle can be a hassle, especially if you’re on a budget. But with Advance Auto Parts, you can find high-quality Drivetrains for your 1978 GMC P15 at great prices. Our Drivetrains inventory for this model ranges from just $0.91 to $1,566.99, with an average price of $82.74. Our 116 Drivetrains in stock come from 15 trusted brands, so you’re sure to find the right part for your 1978 GMC P15 without overspending.

Top Brands and High Customer Satisfaction

Advance Auto Parts takes pride in offering only the best brands in the automotive industry. For your 1978 GMC P15, we stock popular OEM and aftermarket Drivetrains from top names like Valvoline, FELPRO, Moog, and more. Valvoline Drivetrains start at just $14.49 and boast an impressive 5 stars average rating from customers. FELPRO and Moog also bring quality to the table, with Drivetrains available starting at $7.99, and at an average 5 stars rating. With 701 customer reviews and counting, our 1978 GMC P15 Drivetrains have a strong track record of reliability, ensuring you can trust your purchase.

Explore Related Parts and More

While you’re here, don’t forget to check out other essential categories that go hand in hand with Drivetrain upgrades. Explore related part types like Batteries and Chargers, Oil and Lubricants and more to make sure your 1978 GMC P15 is always ready to roll. We’re committed to providing you with everything you need to keep your P15 in top shape, all in one place. Start shopping confidently below for your 1978 GMC P15!

Best-Selling Universal Joints for 1978 GMC P15s

Enhance the driving experience in your GMC with 15 quality Universal Joint components, starting at $4.49.

Spicer – Universal Joint (Part No.5-153X)

Universal Joint

from

$28.99
When you see the Spicer name, you know you are buying the highest quality product available. Spicer universal joints are no exception. Dana manufactures a full line of Spicer universal joints that are engineered to ensure longer life for vehicles.
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MOOG Driveline Products – Greaseable Premium Universal Joint (Part No.369)

Greaseable Premium Universal Joint

from

$19.99
Backed by superior materials and rigorous testing, MOOG Heavy Duty universal joints deliver reliable performance you can count on. MOOG problem-solving innovations ensure fast, hassle-free installation.

Product Features:
  • BUILT TO LAST — Rugged design specifically engineered for fleets, off-highway and commercial vehicles
  • STRONG AND DURABLE — Bearing cups are cold-formed, case-hardened and precision ground for strength and durability
  • KEEPS DIRT OUT — Abrasion-resistant nitrile seals provide ideal grease retention and protection from under-vehicle contaminants
  • GREASEABLE DESIGN — Drilled and tapped grease fitting holes for easy servicing and cross trunnions with large grease reservoirs with radial grease channels for grease distribution
  • INHIBITS PREMATURE WEAR — Cross trunnions ground to a 15-25 RMS finish for a smooth surface free of microscopic grooves that can cause premature wear
  • RELIABLE PERFORMANCE — Internal anti-drainback valve integrated into thrust washer controls lubrication flow and prevents dry startup
  • RIGOROUS TESTING — Comprehensive testing throughout design and development processes by MOOG engineers for quality you can count on
See More

MOOG Driveline Products – Non-Greaseable Super Strength Universal Joint (Part No.269)

Non-Greaseable Super Strength Universal Joint

from

$32.99
Backed by superior materials and rigorous testing, MOOG Super Strength universal joints deliver reliable performance you can count on. MOOG problem-solving innovations ensure fast, hassle-free installation.

Product Features:
  • BUILT TO LAST — Rugged design specifically engineered for applications with higher torque and horsepower
  • COMPREHENSIVE COVERAGE — Available for foreign and domestic nameplates
  • CORROSION PROTECTION — Exclusive MICRO SHIELDΓ┐ó coating protects against rust and corrosion
  • KEEPS DIRT OUT — Abrasion-resistant nitrile seals provide ideal grease retention and protection from under-vehicle contaminants
  • RIGOROUS TESTING — Comprehensive testing throughout design and development processes by MOOG engineers for quality you can count on
  • STRONG AND DURABLE — Bearing cups are cold-forged, case-hardened and precision ground while steel cross is forged and carburized heat treated for strength and durability
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MOOG Driveline Products – Greaseable Super Strength Universal Joint (Part No.280)

Greaseable Super Strength Universal Joint

from

$32.99
Backed by superior materials and rigorous testing, MOOG Super Strength universal joints deliver reliable performance you can count on. MOOG problem-solving innovations ensure fast, hassle-free installation.

Product Features:
  • BUILT TO LAST — Rugged design specifically engineered for applications with higher torque and horsepower
  • COMPREHENSIVE COVERAGE — Available for foreign and domestic nameplates
  • CORROSION PROTECTION — Exclusive MICRO SHIELDΓ┐ó coating protects against rust and corrosion
  • GREASABLE DESIGN — Bearing cups feature a radial design to allow 360 Degrees lubricant distribution to all bearing surfaces
  • KEEPS DIRT OUT — Abrasion-resistant nitrile seals provide ideal grease retention and protection from under-vehicle contaminants
  • RIGOROUS TESTING — Comprehensive testing throughout design and development processes by MOOG engineers for quality you can count on
  • STRONG AND DURABLE — Bearing cups are cold-forged, case-hardened and precision ground while steel cross is forged and carburized heat treated for strength and durability
See More

MOOG Driveline Products – Greaseable Super Strength Universal Joint (Part No.232)

Greaseable Super Strength Universal Joint

from

$36.99
Backed by superior materials and rigorous testing, MOOG Super Strength® universal joints deliver reliable performance you can count on. MOOG problem-solving innovations ensure fast, hassle-free installation.

Product Features:
  • BUILT TO LAST — Rugged design specifically engineered for applications with higher torque and horsepower
  • CORROSION PROTECTION — Exclusive MICRO SHIELD coating protects against rust and corrosion
  • STRONG AND DURABLE — Cold-forged, case-hardened and precision-ground alloy steel crosses for durability
  • KEEPS DIRT OUT — Abrasion-resistant nitrile seals provide ideal grease retention and protection from under-vehicle contaminants
  • GREASABLE DESIGN — Bearing cups feature a radial design to allow 360 Degrees lubricant distribution to all bearing surfaces
  • RIGOROUS TESTING — Comprehensive testing throughout design and development processes by MOOG engineers for quality you can count on
  • COMPREHENSIVE COVERAGE — Available for foreign and domestic nameplates
See More

Driveworks – Universal Joint (Part No.DW-369)

Universal Joint

from

$15.99
DRIVEWORKS Universal Joints are designed to meet or exceed OE fit, form, and function. These universal joints are set to provide superior quality and easy installation. DRIVEWORKS Universal Joints are constructed from quality materials for extended durability. DRIVEWORKS Universal Joints are pre-lubricated with premium grease to provide a longer service life. The grease fittings are pre-installed to allow for easy maintenance (where applicable).

Product Features:
  • The cross is hot forged for the higher torque and horsepower
  • The bearing cups are made by cold forging, having higher strength and better rigidity
  • Bearig cups allow 360 lubricant distribution to bearing surfaces, and are precision-ground for maximum load-carrying capabilities
  • Lubrication grooves designed to ensure grease penetration to entire journal and needle bearings
  • Grease fitting in the cross allows for easy maintenance and the flexible use of the whole assembly
  • Snap rings are held to strict tolerances to ensure proper cup position and retention
  • Nitrile rubber seals to optimize grease retention and reduce contamination
See More

Driveworks – Universal Joint (Part No.DW-331)

Universal Joint

from

$15.99
DRIVEWORKS Universal Joints are designed to meet or exceed OE fit, form, and function. These universal joints are set to provide superior quality and easy installation. DRIVEWORKS Universal Joints are constructed from quality materials for extended durability. DRIVEWORKS Universal Joints are pre-lubricated with premium grease to provide a longer service life. The grease fittings are pre-installed to allow for easy maintenance (where applicable).

Product Features:
  • The cross is hot forged for the higher torque and horsepower
  • The bearing cups are made by cold forging, having higher strength and better rigidity
  • Bearig cups allow 360 lubricant distribution to bearing surfaces, and are precision-ground for maximum load-carrying capabilities
  • Lubrication grooves designed to ensure grease penetration to entire journal and needle bearings
  • Grease fitting in the cross allows for easy maintenance and the flexible use of the whole assembly
  • Snap rings are held to strict tolerances to ensure proper cup position and retention
  • Nitrile rubber seals to optimize grease retention and reduce contamination
See More

MOOG Driveline Products – Non-Greaseable Super Strength Universal Joint (Part No.231)

Non-Greaseable Super Strength Universal Joint

from

$41.99
Backed by superior materials and rigorous testing, MOOG Super Strength universal joints deliver reliable performance you can count on. MOOG problem-solving innovations ensure fast, hassle-free installation.

Product Features:
  • BUILT TO LAST — Rugged design specifically engineered for applications with higher torque and horsepower
  • COMPREHENSIVE COVERAGE — Available for foreign and domestic nameplates
  • CORROSION PROTECTION — Exclusive MICRO SHIELDΓ┐ó coating protects against rust and corrosion
  • KEEPS DIRT OUT — Abrasion-resistant nitrile seals provide ideal grease retention and protection from under-vehicle contaminants
  • RIGOROUS TESTING — Comprehensive testing throughout design and development processes by MOOG engineers for quality you can count on
  • STRONG AND DURABLE — Bearing cups are cold-forged, case-hardened and precision ground while steel cross is forged and carburized heat treated for strength and durability
See More

MOOG Driveline Products – Greaseable Premium Universal Joint (Part No.331)

Greaseable Premium Universal Joint

from

$19.99
Backed by superior materials and rigorous testing, MOOG Heavy Duty universal joints deliver reliable performance you can count on. MOOG problem-solving innovations ensure fast, hassle-free installation.

Product Features:
  • BUILT TO LAST — Rugged design specifically engineered for fleets, off-highway and commercial vehicles
  • STRONG AND DURABLE — Bearing cups are cold-formed, case-hardened and precision ground for strength and durability
  • KEEPS DIRT OUT — Abrasion-resistant nitrile seals provide ideal grease retention and protection from under-vehicle contaminants
  • GREASEABLE DESIGN — Drilled and tapped grease fitting holes for easy servicing and cross trunnions with large grease reservoirs with radial grease channels for grease distribution
  • INHIBITS PREMATURE WEAR — Cross trunnions ground to a 15-25 RMS finish for a smooth surface free of microscopic grooves that can cause premature wear
  • RELIABLE PERFORMANCE — Internal anti-drainback valve integrated into thrust washer controls lubrication flow and prevents dry startup
  • RIGOROUS TESTING — Comprehensive testing throughout design and development processes by MOOG engineers for quality you can count on
See More

Brute Force – Universal Joint (Part No.2-0053BF)

Universal Joint

from

$8.39
Universal Joint – Brute Force
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Neapco – Universal Joint (Part No.1-0154)

Universal Joint

from

$6.49
Universal Joint
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Neapco – Universal Joint (Part No.2-0053)

Universal Joint

from

$5.39
Universal Joint
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Neapco – Universal Joint (Part No.1-0153)

Universal Joint

from

$4.49
Universal Joint
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Spicer – Universal Joint (Part No.5-1350-1X)

Universal Joint

from

$49.99
Universal Joint

Neapco – Universal Joint (Part No.2-0052)

Universal Joint

from

$15.59
Universal Joint
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Most Popular 1978 GMC P15 CV Axles and Joints

Customize your GMC with 1 CV Axles and Joints products like CV Quick Boot Kits, all priced under $34.99.

Dorman – Help – C.V. Joint Bolted Split Boot Kit Front Outer (Part No.03609)

C.V. Joint Bolted Split Boot Kit Front Outer

from

$34.99
Our CV Joint Boots provide various methods of eliminating the removal of the CV joint during installation. Uni-Fit boots can be stretched over the CV Joint and Quick Boots come in halves.

Product Features:
  • Save labor with easy installation methods
  • Comes with grease and clamps
  • Rugged silicone or neoprene materials offer a high resistance to cracking, rotting and leaking
  • The Speedi and Quick Boot are installed without special tools
See More

Top Picks for 1978 GMC P15 Differentials

Upgrade GMC P15s with top-quality Differentials parts, including 64 OEM and aftermarket selections for your 1978 model.

Valvoline – DEXRON – VI ATF Full Synthetic Automatic Transmission Fluid, 1 Quart (Part No.822405)

DEXRON - VI ATF Full Synthetic Automatic Transmission Fluid, 1 Quart

from

$14.49
Valvoline DEXRON-VI/MERCON LV ATF is a full-synthetic transmission fluid formulated with advanced additive technology to meet and exceed the requirements of the General Motors DEXRON-VI specification. It is officially licensed and approved by GM and is fully back-serviceable and can be used wherever DEXRON-II and/or DEXRON-III are recommended. Recommended for use in the following applications: DEXRON-VI, DEXRON-III, DEXRON-II, and Allison C-4.

Product Features:
  • Formulated with full-synthetic base stocks and advanced additive technology to meet the challenging demands of automatic transmissions
  • Enhanced anti-shudder protection for smooth shifting and maximum power transfer
  • Developed with anti-wear technology to help improve transmission durability
  • Engineered with a proprietary blend of base oils and advanced additives to provide better oil flow at low temperatures and greater film protection at higher temperatures
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Valvoline – DEX/MERC Automatic Transmission Fluid, 1 Gallon (Part No.773636)

DEX/MERC Automatic Transmission Fluid, 1 Gallon

from

$35.99
Valvoline DEX/MERC ATF is a high-quality transmission fluid formulated to meet the challenging demands many automatic transmissions. Its responsive low-temperature fluidity is beneficial in both electronic and hydraulic controlled transmissions and transaxles. Recommended for use in the following applications: MERCON®, DEXRON®-III, Ford M2C138-CJ and M2C166-H, Allison C-4 and TES-389, and Caterpillar TO-2.

Product Features:
  • Formulated with premium base stocks and advanced additive technology to meet the challenging demands of automatic transmissions.
  • Enhanced anti-shudder protection for smooth shifting and maximum power transfer
  • Developed with anti-wear technology to help improve transmission durability
  • Engineered with a proprietary blend of base oils and advanced additives to provide better oil flow at low temperatures and greater film protection at higher temperatures
See More

Felpro – DIFFERENTIAL GASKET (Part No.RDS 13391)

DIFFERENTIAL GASKET

from

$7.99
Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:
  • Meets or exceeds all original equipment specifications
  • Application specific design to ensure a perfect fit
  • Unsurpassed quality you can trust
  • Validated for fit, form and function
  • Each Fel-Pro gasket, no matter how small, is engineered to exacting standards with proprietary design, engineering and manufacturing processes
See More

National – Multi Purpose Seal (Part No.8460N)

Multi Purpose Seal

from

$13.99
National has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.

Product Features:
  • Low swell in hydrocarbon fluids
  • Design type: spring loaded; multi-lip
  • Provides good low temperature capability
  • Temperature range: -40°F to 225°F; -40°C to 107°C
  • Delivers quality and reliable performance for every type of repair
See More

Driveworks – Oil Seal (Part No.S-2043)

Oil Seal

from

$7.79
Value-priced seal meets all cataloged application requirements.

Product Features:
  • Brand may vary by location
See More

Driveworks – Oil Seal (Part No.S-8460N)

Oil Seal

from

$6.29
Value-priced seal meets all cataloged application requirements.

Product Features:
  • Brand may vary by location
See More

National – Shaft Repair Sleeve (Part No.99193)

Shaft Repair Sleeve

from

$43.99
National® has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.

Product Features:
  • Designed to repair damaged, grooved or worn shafts
  • Durable stainless steel construction for corrosion-free sealing surface that surpasses most original shaft specifications
  • Ideal for a shaft where indications of seal wear, such as tracks or grooves have developed
  • Ultra-thin construction (0.01/0.25mm wall thickness) allows original seal size to be used with minimal additional lip loading
  • Easy to install with removable flange and installation tool
  • Installation tool reduces sleeve distortion and allows for installation without removal from the shaft
See More

Richmond Gear – Differential Ring And Pinion (Part No.49-0072-1)

Differential Ring And Pinion

from

$350.99
Richmond Gear is the leading manufacturer of professional quality, high-performance drivetrain products. Our complete line of products ranges from high performance ring-and-pinion sets for serious street and racing applications to torque-hungry manual transmissions and components. Richmond Gear products have been winners both at the Daytona 500 and U.S. Nationals for decades. WINNERS RUN RICHMOND!

Product Features:
  • For over 80-years, the Richmond Double-Diamond logo has represented some of the highest quality gears in the racing industry. Winners Run Richmond!
  • The superior quality of Richmond gearsets is a result of outstanding design, world class manufacturing and an extensive testing process that is performed on all products.
  • Richmond performance gearsets have been winners for decades at: NHRA, NMRA, NMCA, Daytona 500, WISSOTA and U.S. Nationals.
  • Richmond Gear is a leading manufacturer of high performance ring and pinion gearsets and drivetrain components, backed by a two year warranty.
  • Engineered to perform faster and be more reliable, Richmond performance drivetrain products are the result of a continuous research and development program combined with state-of-the-art manufacturing capabilities.
See More

Richmond Gear – Differential Ring And Pinion (Part No.69-0350-1)

Differential Ring And Pinion

from

$350.99
Richmond Gear is the leading manufacturer of professional quality, high-performance drivetrain products. Our complete line of products ranges from high performance ring-and-pinion sets for serious street and racing applications to torque-hungry manual transmissions and components. Richmond Gear products have been winners both at the Daytona 500 and U.S. Nationals for decades. WINNERS RUN RICHMOND!

Product Features:
  • For over 80-years, the Richmond Double-Diamond logo has represented some of the highest quality gears in the racing industry. Winners Run Richmond!
  • The superior quality of Richmond gearsets is a result of outstanding design, world class manufacturing and an extensive testing process that is performed on all products.
  • Richmond performance gearsets have been winners for decades at: NHRA, NMRA, NMCA, Daytona 500, WISSOTA and U.S. Nationals.
  • Richmond Gear is a leading manufacturer of high performance ring and pinion gearsets and drivetrain components, backed by a two year warranty.
  • Engineered to perform faster and be more reliable, Richmond performance drivetrain products are the result of a continuous research and development program combined with state-of-the-art manufacturing capabilities.
See More

Felpro – Differential Cover Gasket (Part No.RDS 55028-1)

Differential Cover Gasket

from

$9.99
Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:
  • Meets or exceeds all original equipment specifications
  • Application specific design to ensure a perfect fit
  • Unsurpassed quality you can trust
  • Validated for fit, form and function
  • Each Fel-Pro gasket, no matter how small, is engineered to exacting standards with proprietary design, engineering and manufacturing processes
See More

National – Bearings (Part No.M802048)

Bearings

from

$23.99
National Oil Seals & Bearings offer a full line of premium oil seals and bearings.

Product Features:
  • Premium bearing design matches OEM specifications
  • Precision manufactured using premium-grade steel for outstanding durability and performance
  • Crowned raceways and rollers to ensure even load distribution for maximum life
  • Industry leading coverage
  • Professional technicians know they can depend on National
See More

National – Bearings (Part No.HM89449)

Bearings

from

$25.49
National Oil Seals & Bearings offer a full line of premium oil seals and bearings.

Product Features:
  • Premium bearing design matches OEM specifications
  • Precision manufactured using premium-grade steel for outstanding durability and performance
  • Crowned raceways and rollers to ensure even load distribution for maximum life
  • Industry leading coverage
  • Professional technicians know they can depend on National
See More

Motive Gear – Differential Carrier Shim Kit (Part No.1101)

Differential Carrier Shim Kit

from

$8.49
High-quality Differential Carrier Shim Kit

Product Features:
  • CARRIER SHIMS 12 BOLT GM CAR & TRUCK ALSO GM8.6″ 99-ON
See More

Yukon Gear – 3 Qt – 80W90 Conventional Gear Oil With Posi Additive (Part No.15003)

3 Qt - 80W90 Conventional Gear Oil With Posi Additive

from

$57.99
3 Qt. Penzoil 80W90 conventional gear Oil. W/ bottle of Posi additive.

Product Features:
  • Includes three quarts of conventional oil and one 4oz bottle of Yukon positraction additive
See More

Driveworks – Tapered Roller Bearing (Part No.S-M-802048)

Tapered Roller Bearing

from

$16.99
Product Features:
  • Brand may vary by location
See More

Driveworks – Taper Bearing Cup (Part No.S-LM-501314)

Taper Bearing Cup

from

$7.29
Value-priced bearing meets all cataloged application requirements.

Product Features:
  • Brand may vary by location
See More

National – Bearings (Part No.HM89410)

Bearings

from

$11.49
National Oil Seals & Bearings offer a full line of premium oil seals and bearings.

Product Features:
  • Premium bearing design matches OEM specifications
  • Precision manufactured using premium-grade steel for outstanding durability and performance
  • Crowned raceways and rollers to ensure even load distribution for maximum life
  • Industry leading coverage
  • Professional technicians know they can depend on National
See More

Motive Gear – Differential Pinion Shim Kit (Part No.1104)

Differential Pinion Shim Kit

from

$12.99


Product Features:
  • KIT SHIM
See More

Yukon Gear – Redline Synthetic "Shock Proof" Oil With Positraction Additive – 4 Quarts (Part No.15005)

Redline Synthetic "Shock Proof" Oil With Positraction Additive - 4 Quarts

from

$148.99
Redline Synthetic “Shock Proof” Oil with positraction Additive. 4 Quarts.

Product Features:
  • Includes four quarts of Redline Shockproof oil and one 4oz bottle of Yukon positraction additive
See More

Yukon Gear – Redline Synthetic "Shock Proof" Oil – 3 Quarts (Part No.15000)

Redline Synthetic "Shock Proof" Oil - 3 Quarts

from

$99.99
Redline Synthetic “Shock Proof” Oil. 3 Quarts.

Product Features:
  • Includes three quarts of Redline Shockproof oil
See More

Motive Gear – Differential Crush Sleeve (Part No.3954482)

Differential Crush Sleeve

from

$5.49


Product Features:
  • CRUSH SLV 8 7/8 12BLT TRK
See More

Yukon Gear – Redline Synthetic "Shock Proof" Oil – 4 Quarts (Part No.15004)

Redline Synthetic "Shock Proof" Oil - 4 Quarts

from

$137.99
Redline Synthetic “Shock Proof” Oil. 4 Quarts.

Product Features:
  • Includes four quarts of Redline Shockproof oil
See More

Dorman – Rear Axle Shaft, Left or Right (Part No.630-128)

Rear Axle Shaft, Left or Right

from

$171.99
Axle shaft damaged or bearings worn out? This axle shaft directly replaces the original equipment on certain vehicles, complete with all necessary application-specific installation components.

Product Features:
  • Direct replacement – this axle shaft replaces the original equipment on specific vehicle years, makes and models.
  • Complete kit – each shaft includes critical installation hardware and components needed for specific vehicle applications.
  • Durable construction – designed to rigorous standards and tested to ensure performance
  • Trustworthy solution – backed by team of engineers and quality control specialists in the United States
See More

Pro-King – Differential Rebuild Kit (Part No.742G004)

Differential Rebuild Kit

from

$82.99
Pro-King is the leading supplier of transmission and driveline products in the aftermarket. All products are designed to meet or exceed OE quality, form, fit and funtion.

Product Features:
  • Contains the highest quality Japanese bearings
See More

Motive Gear – Differential Ring and Pinion (Part No.GM12-456)

Differential Ring and Pinion

from

$209.99


Product Features:
  • GM 12BL 8.875 R/P 4.56 MG
See More

National – Shaft Repair Sleeve (Part No.99170)

Shaft Repair Sleeve

from

$38.99
National® has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.

Product Features:
  • Designed to repair damaged, grooved or worn shafts
  • Durable stainless steel construction for corrosion-free sealing surface that surpasses most original shaft specifications
  • Ideal for a shaft where indications of seal wear, such as tracks or grooves have developed
  • Ultra-thin construction (0.01/0.25mm wall thickness) allows original seal size to be used with minimal additional lip loading
  • Easy to install with removable flange and installation tool
  • Installation tool reduces sleeve distortion and allows for installation without removal from the shaft
See More

Driveworks – Tapered Roller Bearing (Part No.S-LM-603012)

Tapered Roller Bearing

from

$6.79
Product Features:
  • Brand may vary by location
See More

Driveworks – Tapered Roller Bearing (Part No.S-HM-89410)

Tapered Roller Bearing

from

$4.99
Product Features:
  • Brand may vary by location
See More

Motive Gear – Differential Ring and Pinion (Part No.GM12-373X)

Differential Ring and Pinion

from

$226.99


Product Features:
  • GM 12BL 8.875 R/P 3.73 THICK MG
See More

Motive Gear – Differential Ring and Pinion (Part No.GM12-373A)

Differential Ring and Pinion

from

$179.99


Product Features:
  • GM 12BL 8.875 R/P 3.73A MG
See More

Yukon Gear – Bearing Race Driver Set, 21 Piece (Part No.56030)

Bearing Race Driver Set, 21 Piece

from

$1566.99
21 Piece bearing race driver set. (Box wt: 140lbs) No return.

Product Features:
  • Bearing race driver set
  • 21 pieces
  • All steel construction
See More

Richmond Gear – RngPnn (Part No.69-0302-1)

RngPnn

from

$360.99
RngPnn

Richmond Gear – Differential Ring And Pinion (Part No.49-0068-1)

Differential Ring And Pinion

from

$354.99
Richmond Gear is the leading manufacturer of professional quality, high-performance drivetrain products. Our complete line of products ranges from high performance ring-and-pinion sets for serious street and racing applications to torque-hungry manual transmissions and components. Richmond Gear products have been winners both at the Daytona 500 and U.S. Nationals for decades. WINNERS RUN RICHMOND!

Product Features:
  • For over 80-years, the Richmond Double-Diamond logo has represented some of the highest quality gears in the racing industry. Winners Run Richmond!
  • The superior quality of Richmond gearsets is a result of outstanding design, world class manufacturing and an extensive testing process that is performed on all products.
  • Richmond performance gearsets have been winners for decades at: NHRA, NMRA, NMCA, Daytona 500, WISSOTA and U.S. Nationals.
  • Richmond Gear is a leading manufacturer of high performance ring and pinion gearsets and drivetrain components, backed by a two year warranty.
  • Engineered to perform faster and be more reliable, Richmond performance drivetrain products are the result of a continuous research and development program combined with state-of-the-art manufacturing capabilities.
See More

Richmond Gear – Differential Ring And Pinion (Part No.69-0204-1)

Differential Ring And Pinion

from

$344.99
Richmond Gear is the leading manufacturer of professional quality, high-performance drivetrain products. Our complete line of products ranges from high performance ring-and-pinion sets for serious street and racing applications to torque-hungry manual transmissions and components. Richmond Gear products have been winners both at the Daytona 500 and U.S. Nationals for decades. WINNERS RUN RICHMOND!

Product Features:
  • For over 80-years, the Richmond Double-Diamond logo has represented some of the highest quality gears in the racing industry. Winners Run Richmond!
  • The superior quality of Richmond gearsets is a result of outstanding design, world class manufacturing and an extensive testing process that is performed on all products.
  • Richmond performance gearsets have been winners for decades at: NHRA, NMRA, NMCA, Daytona 500, WISSOTA and U.S. Nationals.
  • Richmond Gear is a leading manufacturer of high performance ring and pinion gearsets and drivetrain components, backed by a two year warranty.
  • Engineered to perform faster and be more reliable, Richmond performance drivetrain products are the result of a continuous research and development program combined with state-of-the-art manufacturing capabilities.
See More

Richmond Gear – RngPnn (Part No.49-0280-1)

RngPnn

from

$344.99
RngPnn

Motive Gear – Differential Ring and Pinion (Part No.GM12-373)

Differential Ring and Pinion

from

$293.99


Product Features:
  • GM 12BL 8.875 R/P 3.73 MG
See More

Motive Gear – Differential Ring and Pinion (Part No.GM12-308)

Differential Ring and Pinion

from

$293.99


Product Features:
  • GM 12BL 8.875 R/P 3.08 MG
See More

Richmond Gear – RngPnnInstlKt (Part No.83-1018-M)

RngPnnInstlKt

from

$224.99
RngPnnInstlKt

Motive Gear – Differential Ring and Pinion (Part No.GM12-411X)

Differential Ring and Pinion

from

$220.99


Product Features:
  • GM 12BL 8.875 R/P 4.11 THICK MG
See More

Pro-King – Differential Internal Nest Kit (Part No.742J717)

Differential Internal Nest Kit

from

$219.99
Pro-King is the leading supplier of transmission and driveline products in the aftermarket.

Product Features:
  • All products are designed to meet or exceed OE quality, form, fit and funtion.
See More

Motive Gear – Differential Ring and Pinion (Part No.GM12-342)

Differential Ring and Pinion

from

$205.99


Product Features:
  • GM 12BL 8.875 R/P 3.42 MG
See More

Motive Gear – Differential Ring and Pinion (Part No.GM12-411)

Differential Ring and Pinion

from

$205.99


Product Features:
  • GM 12BL 8.875 R/P 4.11 MG
See More

Motive Gear – Differential Ring and Pinion (Part No.GM12-456A)

Differential Ring and Pinion

from

$187.99


Product Features:
  • GM 12BL 8.875 R/P 4.56A MG
See More

Motive Gear – Differential Ring and Pinion (Part No.GM12-411A)

Differential Ring and Pinion

from

$183.99


Product Features:
  • GM 12BL 8.875 R/P 4.11A MG
See More

Richmond Gear – RngPnnInstlKt (Part No.83-1018-1)

RngPnnInstlKt

from

$182.99
RngPnnInstlKt

Motive Gear – Differential Super Bearing Kit – Koyo (Part No.R12RSK)

Differential Super Bearing Kit - Koyo

from

$137.99


Product Features:
  • SUPER KIT – GM 12 BOLT(TRUCK)
See More

Motive Gear – Differential Master Bearing Kit – Timken (Part No.R12RMKT)

Differential Master Bearing Kit - Timken

from

$120.99
Motive Gear Differential Bearing Kits Include Front & Rear Pinion Bearing, Pinion Seal, Carrier Bearings, Pilot Bearing Where Applicable, Gear Marking Compound, Crush Sleeve, Pinion Nut, Brush, Thread Locking Compound And Cover Gasket Or Rtv

Product Features:
  • KIT BRG & SEAL GM 12 BOLT TRK
See More

Motive Gear – Differential Bearing Kit – Timken (Part No.R12RT)

Differential Bearing Kit - Timken

from

$106.99
Motive Gear Differential Bearing Kits Include Front & Rear Pinion Bearing, Pinion Seal, Carrier Bearings, Pilot Bearing Where Applicable, Gear Marking Compound, Crush Sleeve, Pinion Nut, Brush, Thread Locking Compound And Cover Gasket Or Rtv

Product Features:
  • KIT BRG & SEAL GM 12 BLT TRK 8 7/8″
See More

In-Demand Drive Shafts and Axles for 1978 GMC P15s

Select from 19 premium Drive Shafts and Axles parts for your 1978 GMC P15, with prices ranging from $4.49 to $110.99.

Spicer – Universal Joint (Part No.5-1310X)

Universal Joint

from

$35.99
You expect a lot from your vehicle, and Spicer Life Series (SPL) universal joints deliver. SPL universal joints consistently outperform competitors, so you can hit the road or trail with confidence. Check out the difference that SPL universal joints can make in your vehicle, and make sure you’re getting the longer life, increased bearing capacity and lower maintenance costs that Spicer Life Series (SPL) can provide.
See More

Anchor – Center Support Bearing Motor Mount: Center, 1 Piece (Part No.6038)

Center Support Bearing Motor Mount: Center, 1 Piece

from

$34.49
Center support bearings or Carrier Support Bearings are used when the driveshaft is split into two sections. It serves as a junction on the drive shaft between the transmission and the differential allowing the driveshaft to flex, relieving stress on other drive line components. Each part is engineered and designed to OE Standards. Applicable to AUTOCAR 84-88; CHEV 60-02; DODGE 57-02; FORD 55-07; GMC 63-02; INTL 57-02; KW 81-18; MACK 80-83; PTRB 65-83; WHGM 88-95; WHIT 81-88;. Please verify your application.

Product Features:
  • MAXIMUM VIBRATION DAMPENING: Rubber cushion is made of high grade rubber that ensures maximum dampening of vibration and the ability to absorb over loads.
  • HEAVY GAUGE STEEL FRAME: The housing frame is made from heavy gauge steel with durability that extends the service life.
  • READY TO INSTALL: Most center supports include a sealed bearing and dust shield and are ready to install.
  • For Years: 1955-2018
  • Weight approx: 4 Lbs
  • BEARING ID / BORE: 1.5750 INCH / 40 MM
  • CENTERLINE: 2.48 INCH / 63 MM
  • MOUNT WIDTH: 6.62 INCH / 168 MM
  • STYLE: ROUND FRAME
  • NOT PICTURED: TWO DUST SHIELDS
See More

National – Multi Purpose Bearing (Part No.HB-206-FF)

Multi Purpose Bearing

from

$46.49
National Oil Seals & Bearings offer a full line of premium oil seals and bearings.

Product Features:
  • Premium bearing design matches OEM specifications
  • Precision manufactured using premium-grade steel for outstanding durability and performance
  • Controlled heat treating process for lasting performance and extended bearing life
  • Industry leading coverage
  • Professional technicians know they can depend on National
See More

Driveworks – Universal Joint (Part No.DW-331BL)

Universal Joint

from

$15.99
DRIVEWORKS Universal Joints are designed to meet or exceed OE fit, form, and function. These universal joints are set to provide superior quality and easy installation. DRIVEWORKS Universal Joints are constructed from quality materials for extended durability. DRIVEWORKS Universal Joints are pre-lubricated with premium grease to provide a longer service life. The grease fittings are pre-installed to allow for easy maintenance (where applicable).

Product Features:
  • The cross is hot forged for the higher torque and horsepower
  • The bearing cups are made by cold forging, having higher strength and better rigidity
  • Bearig cups allow 360 lubricant distribution to bearing surfaces, and are precision-ground for maximum load-carrying capabilities
  • Lubrication grooves designed to ensure grease penetration to entire journal and needle bearings
  • Grease fitting in the cross allows for easy maintenance and the flexible use of the whole assembly
  • Snap rings are held to strict tolerances to ensure proper cup position and retention
  • Nitrile rubber seals to optimize grease retention and reduce contamination
See More

National – Bearings (Part No.A-5)

Bearings

from

$16.99
National Oil Seals & Bearings offer a full line of premium oil seals and bearings.

Product Features:
  • Premium bearing design matches OEM specifications
  • Precision manufactured using premium-grade steel for outstanding durability and performance
  • Crowned raceways and rollers to ensure even load distribution for maximum life
  • Industry leading coverage
  • Professional technicians know they can depend on National
See More

Spicer – Universal Joint (Part No.5-178X)

Universal Joint

from

$42.99
When you see the Spicer name, you know you are buying the highest quality product available. Spicer universal joints are no exception. Dana manufactures a full line of Spicer universal joints that are engineered to ensure longer life for vehicles.
See More

Spicer – Universal Joint (Part No.5-1350X)

Universal Joint

from

$44.99
You expect a lot from your vehicle, and Spicer Life Series (SPL) universal joints deliver. SPL universal joints consistently outperform competitors, so you can hit the road or trail with confidence. Check out the difference that SPL universal joints can make in your vehicle, and make sure you’re getting the longer life, increased bearing capacity and lower maintenance costs that Spicer Life Series (SPL) can provide.
See More

National – Multi Purpose Bearing (Part No.HB-88107-A)

Multi Purpose Bearing

from

$44.99
National Oil Seals & Bearings offer a full line of premium oil seals and bearings.

Product Features:
  • Premium bearing design matches OEM specifications
  • Precision manufactured using premium-grade steel for outstanding durability and performance
  • Controlled heat treating process for lasting performance and extended bearing life
  • Industry leading coverage
  • Professional technicians know they can depend on National
See More

Anchor – Center Support Bearing Motor Mount: Center, 1 Piece (Part No.6056)

Center Support Bearing Motor Mount: Center, 1 Piece

from

$22.79
Center support bearings or Carrier Support Bearings are used when the driveshaft is split into two sections. It serves as a junction on the drive shaft between the transmission and the differential allowing the driveshaft to flex, relieving stress on other drive line components. Each part is engineered and designed to OE Standards. Applicable to AUTOCAR 84-88; CHECKER 55-82; CHEV 60-12; DODGE 57-02; FORD 55-10; GMC 63-07; INTL 57-02; ISUZU 96-01; KW 81-18; MACK 80-90; MAZDA 87-94; MITS 87-09; OLDS 90-01; PLYM 80-83; PTRB 65-83; WHGM 88-95; WHIT 81-88;. Please verify your application.

Product Features:
  • MAXIMUM VIBRATION DAMPENING: Rubber cushion is made of high grade rubber that ensures maximum dampening of vibration and the ability to absorb over loads.
  • HEAVY GAUGE STEEL FRAME: The housing frame is made from heavy gauge steel with durability that extends the service life.
  • READY TO INSTALL: Most center supports include a sealed bearing and dust shield and are ready to install.
  • For Years: 1955-2018
  • Weight approx: 3 Lbs
  • BEARING ID / BORE: 1.3780 INCH / 35 MM
  • CENTERLINE: 2.28 INCH / 58 MM
  • MOUNT WIDTH: 6.62 INCH / 168 MM
  • STYLE: ROUND FRAME
  • COMPLETE MOUNT
See More

Driveworks – Drive Shaft Center Support (Part No.S-HB-88107-E)

Drive Shaft Center Support

from

$42.99
Product Features:
  • Brand may vary by location
See More

Anchor – Center Support Bearing Motor Mount: Center, 1 Piece (Part No.6027)

Center Support Bearing Motor Mount: Center, 1 Piece

from

$5.29
Center support bearings or Carrier Support Bearings are used when the driveshaft is split into two sections. It serves as a junction on the drive shaft between the transmission and the differential allowing the driveshaft to flex, relieving stress on other drive line components. Each part is engineered and designed to OE Standards. Applicable to AUTOCAR 84-88; CHECKER 55-82; CHEV 60-12; DODGE 87-97; GMC 67-05; MACK 80-83; PTRB 65-83; WHGM 88-95; WHIT 81-88;. Please verify your application.

Product Features:
  • MAXIMUM VIBRATION DAMPENING: Rubber cushion is made of high grade rubber that ensures maximum dampening of vibration and the ability to absorb over loads.
  • HEAVY GAUGE STEEL FRAME: The housing frame is made from heavy gauge steel with durability that extends the service life.
  • READY TO INSTALL: Most center supports include a sealed bearing and dust shield and are ready to install.
  • For Years: 1955-2012
  • Weight approx: 1 Lbs
  • CUSHION INSERT ONLY
  • FOR COMPLETE MOUNT SEE PART 6056
See More

National – Bearings (Part No.88107-BVV)

Bearings

from

$32.99
National Oil Seals & Bearings offer a full line of premium oil seals and bearings.

Product Features:
  • Premium bearing design matches OEM specifications
  • Precision manufactured using premium-grade steel for outstanding durability and performance
  • Controlled heat treating process for lasting performance and extended bearing life
  • Industry leading coverage
  • Professional technicians know they can depend on National
See More

National – Bearings (Part No.1308-L)

Bearings

from

$110.99
National Oil Seals & Bearings offer a full line of premium oil seals and bearings.

Product Features:
  • Premium bearing design matches OEM specifications
  • Precision manufactured using premium-grade steel for outstanding durability and performance
  • Controlled heat treating process for lasting performance and extended bearing life
  • Industry leading coverage
  • Professional technicians know they can depend on National
See More

Spicer – Center Support Bearing (Part No.210370-1X)

Center Support Bearing

from

$66.99
Center Support Bearing

Spicer – Center Support Bearing (Part No.210527X)

Center Support Bearing

from

$45.99
Center Support Bearing

Spicer – SPICER U-JOINT (Part No.5-1310-1X)

SPICER U-JOINT

from

$44.99
SPICER U-JOINT

FAG US – AXLE BEARING (Part No.FC67147)

AXLE BEARING

from

$36.49
AXLE BEARING

National – Shaft Repair Sleeve (Part No.99162)

Shaft Repair Sleeve

from

$28.99
National® has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.

Product Features:
  • Designed to repair damaged, grooved or worn shafts
  • Durable stainless steel construction for corrosion-free sealing surface that surpasses most original shaft specifications
  • Ideal for a shaft where indications of seal wear, such as tracks or grooves have developed
  • Ultra-thin construction (0.01/0.25mm wall thickness) allows original seal size to be used with minimal additional lip loading
  • Easy to install with removable flange and installation tool
  • Installation tool reduces sleeve distortion and allows for installation without removal from the shaft
See More

Pro-King – Differential Axle Seal (Part No.742G074)

Differential Axle Seal

from

$4.49
Pro-King High Quality Differential Products are designed for trouble free installation and setup.
See More

Most Sold 1978 GMC P15 Transfer Cases

Explore our best-selling GMC parts for the 1978 P15 among 13 OEM and aftermarket options starting from $5.19.

National – Bearings (Part No.M88048)

Bearings

from

$15.99
National Oil Seals & Bearings offer a full line of premium oil seals and bearings.

Product Features:
  • Premium bearing design matches OEM specifications
  • Precision manufactured using premium-grade steel for outstanding durability and performance
  • Crowned raceways and rollers to ensure even load distribution for maximum life
  • Industry leading coverage
  • Professional technicians know they can depend on National
See More

National – Bearings (Part No.M88010)

Bearings

from

$10.49
National Oil Seals & Bearings offer a full line of premium oil seals and bearings.

Product Features:
  • Premium bearing design matches OEM specifications
  • Precision manufactured using premium-grade steel for outstanding durability and performance
  • Crowned raceways and rollers to ensure even load distribution for maximum life
  • Industry leading coverage
  • Professional technicians know they can depend on National
See More

National – Multi Purpose Seal (Part No.9449)

Multi Purpose Seal

from

$9.99
National has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.

Product Features:
  • Low swell in hydrocarbon fluids
  • Design type: spring loaded; multi-lip
  • Provides good low temperature capability
  • Temperature range: -40°F to 225°F; -40°C to 107°C
  • Delivers quality and reliable performance for every type of repair
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National – Multi Purpose Seal (Part No.5200)

Multi Purpose Seal

from

$12.99
National has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.

Product Features:
  • Low swell in hydrocarbon fluids
  • Design type: spring loaded; multi-lip
  • Provides good low temperature capability
  • Temperature range: -40°F to 225°F; -40°C to 107°C
  • Delivers quality and reliable performance for every type of repair
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Dorman – Help – Auto Transmission Case Vent (Part No.14689)

Auto Transmission Case Vent

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$6.99
This transfer case vent is designed to match the fit and function of the original vent on specified vehicles, and is engineered for durability and reliable performance.

Product Features:
  • Direct replacement – this transfer case vent is designed to match the fit and function of the original vent on specified vehicles.
  • Restores functionality – reliable replacement for an original vent that has failed due to blockage or fatigue
  • Durable construction – this part is made from quality materials to ensure reliable performance and long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
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National – Multi Purpose Seal (Part No.9613S)

Multi Purpose Seal

from

$7.99
National has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.

Product Features:
  • Low swell in hydrocarbon fluids
  • Design type: spring loaded; multi-lip
  • Provides good low temperature capability
  • Temperature range: -40°F to 225°F; -40°C to 107°C
  • Delivers quality and reliable performance for every type of repair
See More

National – Multi Purpose Seal (Part No.7412S)

Multi Purpose Seal

from

$14.29
National has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.

Product Features:
  • Low swell in hydrocarbon fluids
  • Design type: spring loaded; multi-lip
  • Provides good low temperature capability
  • Temperature range: -40°F to 225°F; -40°C to 107°C
  • Delivers quality and reliable performance for every type of repair
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Driveworks – Oil Seal Kit (Part No.S-5200)

Oil Seal Kit

from

$6.79
Value-priced seal meets all cataloged application requirements.

Product Features:
  • Brand may vary by location
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National – Shaft Repair Sleeve (Part No.99125)

Shaft Repair Sleeve

from

$24.99
National® has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.

Product Features:
  • Designed to repair damaged, grooved or worn shafts
  • Durable stainless steel construction for corrosion-free sealing surface that surpasses most original shaft specifications
  • Ideal for a shaft where indications of seal wear, such as tracks or grooves have developed
  • Ultra-thin construction (0.01/0.25mm wall thickness) allows original seal size to be used with minimal additional lip loading
  • Easy to install with removable flange and installation tool
  • Installation tool reduces sleeve distortion and allows for installation without removal from the shaft
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National – Bearings (Part No.N-1211-L)

Bearings

from

$94.99
National Oil Seals & Bearings offer a full line of premium oil seals and bearings.

Product Features:
  • Premium bearing design matches OEM specifications
  • Precision manufactured using premium-grade steel for outstanding durability and performance
  • Controlled heat treating process for lasting performance and extended bearing life
  • Industry leading coverage
  • Professional technicians know they can depend on National
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National – Multi Purpose Seal (Part No.481181N)

Multi Purpose Seal

from

$13.49
National has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.

Product Features:
  • Low swell in hydrocarbon fluids
  • Design type: spring loaded; multi-lip
  • Provides good low temperature capability
  • Temperature range: -40°F to 225°F; -40°C to 107°C
  • Delivers quality and reliable performance for every type of repair
See More

Driveworks – Manual Transmission Input Shaft Seal (Part No.S-481181-N)

Manual Transmission Input Shaft Seal

from

$8.49
Product Features:
  • Brand may vary by location
See More

FAG US – SHAFT SEAL (Part No.SS2569)

SHAFT SEAL

from

$5.19
SHAFT SEAL

Top-Rated Drivetrains Brands For Your 1978 GMC P15

Shop for the best-rated brands offering Drivetrains and other products for your 1978 GMC P15s. Below you’ll find some of our best rated Drivetrains from Valvoline, FELPRO, and Moog, and more. Drivetrains from these brands that fit a 1978 P15 start at just $7.99 and are rated as high as 5 stars. OEM and aftermarket Drivetrains don’t get more top quality, durable, and affordable than from the brands below.

Popular Valvoline 1978 GMC P15 Drivetrains

When it comes to maintaining or upgrading your 1978 GMC P15, using quality Drivetrains is essential to ensure durability and a perfect fit. Valvoline ticks all of those boxes. We offer a wide selection of Valvoline Drivetrains, specifically designed for the 1978 GMC P15. With over 2 Valvoline brand Drivetrains in stock, you’re sure to find what you need. The prices for these top-notch parts start as low as $14.49, with an average price of just $25.24. Plus, with over 19 customer reviews and an average rating of 5 stars, you can trust that our Valvoline Drivetrains will get the job done right. Choose Advance Auto Parts for reliability, quality, and expert-approved parts that keep your vehicle running strong.

DEXRON - VI ATF Full Synthetic Automatic Transmission Fluid, 1 Quart
from
$14.49

(2)

DEXRON – VI ATF Full Synthetic Automatic Transmission Fluid, 1 Quart

“I’ve used this in my 2005 2500HD since I bought the truck with 20k on it now at 280k changed every other year maybe 40k I’d put on in two years,
I pu”

DEX/MERC Automatic Transmission Fluid, 1 Gallon
from
$35.99

(17)

DEX/MERC Automatic Transmission Fluid, 1 Gallon

“Equivalent to oem”

Popular FELPRO 1978 GMC P15 Drivetrains

FELPRO auto parts is one of the highest quality Drivetrain brands in the market. Any 1978 GMC P15 owner should feel confident when installing genuine FELPRO parts in their vehicle. To ensure the best fit and performance for your 1978 P15, Advance Auto Parts carries a full inventory of 2 FELPRO Drivetrains. Plus you will be keeping your GMC in peak condition while saving money because prices on these FELPRO Drivetrains range from $7.99 to $9.99, plus, with more than 198 customer reviews and an impressive 5 stars average rating, you can be confident the Fram Drivetrains below will deliver on both quality and value.

Differential Cover Gasket
from
$9.99

(195)

Differential Cover Gasket

“Product easy to put on and easy to work with worked great so far”

DIFFERENTIAL GASKET
from
$7.99

(3)

DIFFERENTIAL GASKET

“Perfect fit for my 1970 c10 with 12 bolt rear end”

FAQs for 1978 GMC P15 Drivetrains

Which Drivetrains are best-sellers for 1978 GMC P15s?

Out of 116 Drivetrains that fit 1978 GMC P15s, the following parts are the top sellers:

What’s the price range for 1978 GMC P15 Drivetrains?

Drivetrain prices for the 1978 GMC P15 start at $0.91 and go up to $1,566.99 for the most premium parts.

What’s the average price of a Drivetrain for a 1978 GMC P15?

The average price for Drivetrains for the 1978 GMC P15 is $82.74. Keep in mind the variety of part types within our Drivetrain category so you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Drivetrains for other GMC P15 model years?

Yes, we currently carry Drivetrains for 3 model years of GMC P15s between 1975 and 1977. Drivetrains are bought most frequently for the following model years: 1977, 1976, and 1975.

What are the cheapest Drivetrains for my 1978 GMC P15?

The cheapest 1978 GMC P15 Drivetrains we carry in stock are:

What are the top-rated Drivetrains that fit the 1978 GMC P15?

Out of 701 reviews by customers, our 1978 GMC P15 Drivetrains have an average customer rating of . These are some of the highest-rated Drivetrain types for the 1978 GMC P15 and their top-rated products:

What types of Drivetrains do you sell for my 1978 GMC P15?

As of 2/5/25, these are some of the most in-demand types of Drivetrains for a 1978 GMC P15:

Can I get help with 1978 GMC P15 Drivetrain orders?

Contact our customer support team, by chat or phone, through the help desk page, where you can find instant answers about GMC Drivetrains and more.

What is your return policy for GMC P15 Drivetrains?

Advance Auto Parts keeps returns simple. For new GMC P15 Drivetrains and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.