1978 GMC P15 Transmission Parts

Essential 1978 GMC P15 Transmission Parts

Felpro – Transmission Oil Pan Gasket (Part No.TOS 18633)

Transmission Oil Pan Gasket

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$8.49
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
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Permatex – Ultra Grey RTV Silicone Gasket Maker, 3 OZ (Part No.82194)

Ultra Grey RTV Silicone Gasket Maker, 3 OZ

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$11.49
Permatex Ultra Grey is specified for high torque and high vibration applications. Ultra Grey offers a sensor-safe, low odor, non-corrosive formula and is OEM specified to fit dealership warranty requirements. This high performance gasket maker meets performance specs of OE silicone gaskets and can be used on high torque and vibration applications such as valve covers, water pump, intake manifold end seals ad thermostat housings.

Product Features:
  • High torque and rigidity
  • Sensor-safe, non-corrosive formula
  • OEM specified
  • Low-odor, non-corrosive formula
  • Ideal for closed spaced bolt patterns
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ATP – AT CONTR SOLENOID (Part No.SE-1)

AT CONTR SOLENOID

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$111.99
AT CONTR SOLENOID

National – Bearings (Part No.A-3)

Bearings

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$14.99
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
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Imperial – Transmission Oil Cooler Reinstallation Kit (Part No.248002)

Transmission Oil Cooler Reinstallation Kit

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$20.79
Provides all necessary components for the proper reinstallation of an Imperial transmission oil cooler.

Product Features:
  • Transmission cooler reinstallation kit
  • Contains part numbers 248001, 226201, 240250 and 4 hose clamps
  • Provides all hardware for reinstallation of Imperial transmission coolers
  • Contains nylon mounting rods, foam pads, locking buttons, hose and fitting
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ATP – AT OVERHAUL KIT (Part No.JGS-52)

AT OVERHAUL KIT

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$76.99
AT OVERHAUL KIT

Imperial – Econo-Kool® Transmission Oil Cooler (Part No.241018)

Econo-Kool® Transmission Oil Cooler

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$65.99
Product Features:
  • Imperial Econo-Kool« tube and fin transmission cooler
  • Size: 3/4″ x 10″ x 15-7/8″
  • Class “A” motor homes, large travel trailers, 5th-wheel trailers
  • GVWR up to 26,000 lbs.; towing up to 10,000 lbs.
  • Compatible with OEM cooler systems
  • Ultrasonically soldered for reliability
  • 100% pressure testing to 150 PSI for quality assurance
  • High efficiency turbulators
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B & M – Torque Converter, Nitrous Holeshot 2400 (Part No.20480)

Torque Converter, Nitrous Holeshot 2400

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$512.99
Nitrous Holeshot Converters are Built with the same features as the other B&M Holeshots, with the addition of anti-balloon plates. The anti-balloon plates will allow these converters to stand up to the instant horsepower nitrous delivers. Due to torque converter core availability, the actual converter size may vary but performance functionality will be as advertised.

Product Features:
  • 2300-2500 RPM
  • Small And Big Blocks
  • Mild To Serious Performance
  • Furnace Brazed
  • Fully Balanced
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ATP – AT SEL SHAFT SEAL (Part No.SO-19)

AT SEL SHAFT SEAL

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$7.99
AT SEL SHAFT SEAL

Driveworks – Wheel Bearing: Direct Fit, 1 Piece (Part No.S-5707)

Wheel Bearing: Direct Fit, 1 Piece

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$14.99
WJB Automotive wheel bearings are a direct replacement for original parts at a much more affordable cost. Each wheel bearing is engineered to meet or exceed OE specifications, and goes through intensive quality control inspections to ensure proper fitment. Manufactured using high-precision machinery and advanced heat treatment processes, these bearings are designed for maximum durability and extended periods of use under any driving condition. Specific to certain applications, WJB bearings have multi-lip seals built into the bearing for increased protection against invasive contaminants and premature wear.

Product Features:
  • Depending on the application, specified WJB wheel bearings have integrated encoder rings that automatically sync with the vehicle’s anti-lock braking system (ABS) upon successful installation
  • Engineered, manufactured, and tested to meet or exceed OE specifications
  • Integrated seal design improves contamination resistance for a longer bearing life
  • High performance grease is used to lubricate the inner raceway to ensure smooth operation, higher operating temperatures, and minimal noise
  • Manufactured from high quality steel to maximize durability under even the harshest driving conditions
  • Brand may vary by location
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Carquest Premium – Neutral Safety Switch (Part No.SBA4487)

Neutral Safety Switch

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$15.79
CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.
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ATP – AT OIL PUMP SEAL (Part No.CO-4)

AT OIL PUMP SEAL

from

$14.99
AT OIL PUMP SEAL

Felpro – Manual Transmission Gasket Set (Part No.TS 30118)

Manual Transmission Gasket Set

from

$24.49
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
  • Engineered and manufactured specifically for the repair environment
  • Unsurpassed quality you can trust
  • Includes all parts needed to complete the repair
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ATP – AT OIL PUMP GASKET (Part No.SG-27)

AT OIL PUMP GASKET

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$10.99
AT OIL PUMP GASKET

Dorman – Help – Shifter Link Bushing (Part No.02373)

Shifter Link Bushing

from

$4.19
We offer a line of Auto Trans Shift Lever Control Rod Bushings for a range of applications. All our Auto Trans Shift Lever Control Rod Bushings are made of quality materials for a long service life.

Product Features:
  • Direct replacement for a proper fit every time
  • Conveniently available in a variety of sizes
  • Easy to install
  • Manufacturing materials include durable plastic
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B & M – Shift Improver Kit For 65-87 TH400 Transmission (Part No.20260)

Shift Improver Kit For 65-87 TH400 Transmission

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$60.99
The B&M Shift Improver Kit the easiest way to get the performance you’ve always wanted out of your automatic transmission, two modes to select from: Heavy Duty, or Street/Strip. It’s our least expensive and simplest to install kit.

Product Features:
  • Provides Crisp Shifts
  • On Any Stock Automatic Transmission
  • Eliminates Soft/Sluggish Shift
  • Eliminates Shift Overlap
  • Eliminate Clutch and Band Wear
  • Improves Transmission Life
  • Transmission Removal Not Required
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ATP – AUTO TRANS BAND (Part No.JX-58)

AUTO TRANS BAND

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$27.99
AUTO TRANS BAND

National – Multi Purpose Seal (Part No.8792S)

Multi Purpose Seal

from

$6.99
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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B & M – Automatic Shifter, Z-Gate (Part No.80681)

Automatic Shifter, Z-Gate

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$272.99
Reverse lockout meets NHRA and IHRA requirements. Includes neutral safety switch, backup light switch, black T-Handle. Fits most 3 Speed applications.

Product Features:
  • Base Trims To Custom Fit Floor
  • NHRA/IHRA Reverse Lockout Meets Requirements
  • Includes Neutral Safety Switch
  • Includes Backup Light Switch
  • Includes Black T-Handle and Cable
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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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ATP – AT SOLENOID SEAL (Part No.JO-15)

AT SOLENOID SEAL

from

$3.99
AT SOLENOID SEAL

Dorman – Help – Clutch Pilot Bushing (Part No.14650)

Clutch Pilot Bushing

from

$8.29
This clutch pilot bushing 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 clutch pilot bushing matches the fit and function of the factory part on specified years, makes and models
  • Ideal solution – this bushing is a reliable replacement for an original part that 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
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National – Shaft Repair Sleeve (Part No.99176)

Shaft Repair Sleeve

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$46.49
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:
  • 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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Driveworks – Oil Seal (Part No.S-7038SA)

Oil Seal

from

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

Product Features:
  • Brand may vary by location
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ATP – AT EXT HOUSING SEAL (Part No.SO-22)

AT EXT HOUSING SEAL

from

$7.99
AT EXT HOUSING SEAL

ATP – AT EXT HOUSING SEAL (Part No.JO-57)

AT EXT HOUSING SEAL

from

$7.99
AT EXT HOUSING SEAL

ATP – AT DETENT CABLE SEAL (Part No.SO-36)

AT DETENT CABLE SEAL

from

$3.99
AT DETENT CABLE SEAL

1978 GMC P15 Transmission Parts

You count on your 1978 GMC P15 to run right. That means taking care of it with regular maintenance, necessary repairs, and the right parts. Advance Auto Parts can help with all of that thanks to our extensive inventory of trusted Transmission Parts. With 111 Transmission Parts ranging in price from $1.99 to $973.99, you’re sure to find everything you need for your 1978 GMC P15.

Brands matter. If you want to shop a specific Transmission Parts brand, we stock 13 different brands like Imperial, National, and Permatex. 1978 GMC P15 Transmission Parts start as low as $1.99!

One of the best ways to find top quality OEM or aftermarket Transmission Parts is by asking professionals. Short of that, you can shop with confidence thanks to our 449 extensive product reviews on 1978 GMC P15 Transmission Parts. Some of the top-rated Transmission Parts products we carry are Multi Purpose Seal with 4.4 stars and Wheel Bearing: Direct Fit, 1 Piece with 2.8 stars.

Did we mention you can order your Transmission Parts from our online catalog and have them shipped right to your garage? Or, if you feel like seeing the parts first-hand, search for your nearest Advance Auto Parts location above and pick up in-store when you’re ready. Browse our full Transmission Parts inventory for your 1978 GMC P15 below to get started!

Top-Rated Transmission Parts Brands For Your 1978 GMC P15

Trusted Transmission Parts OEM and aftermarket product brands are what Advance Auto Parts specializes in. The brands we work with are sure to keep that 1978 GMC P15 running right for years to come. In our inventory you’ll find brands like Imperial, National, Permatex, and even more.

Popular Felpro Transmission Parts

You’ll find popular Felpro brand products across Automatic Transmission Pan and Gaskets. All are waiting to get your 1978 GMC P15 back on the road. Some of the top-rated Felpro products in these categories are:
Transmission Oil Pan Gasket
from $8.49
(3)
Transmission Oil Pan Gasket
Transmission Oil Pan Gaskets
Transmission Oil Pan Gasket
from $9.29
(5)
Transmission Oil Pan Gasket
Transmission Oil Pan Gaskets

FAQs for 1978 GMC P15 Transmission Parts

What are the most purchased Transmission Parts for the 1978 GMC P15?

Out of 111 Transmission Parts for the 1978 GMC P15, the most popular in our inventory are:
Ultra Grey RTV Silicone Gasket Maker, 3 OZ
from $11.49
(95)
Ultra Grey RTV Silicone Gasket Maker, 3 OZ
Transmission Pan Gaskets
Bearings
from $14.99
(21)
Bearings
Manual Transmission Output Shaft Bearings
Cylindrical Bearing
from $22.99
(20)
Cylindrical Bearing
Axle Output Shaft Bearings

What are the top-rated 1978 GMC P15 Transmission Parts?

Top-rated Transmission Parts for your 1978 GMC P15 based on customer reviews/ratings are:
Multi Purpose Seal
from $6.99
(20)
Multi Purpose Seal
“Would have been fine most likely – if correct seal was in the box. For redoing a Front Crank Seal on a 4 cylinder 89 Ranger.”
Wheel Bearing: Direct Fit, 1 Piece
from $14.99
(19)
Wheel Bearing: Direct Fit, 1 Piece
“ok”
Econo-Kool® Transmission Oil Cooler
from $65.99
(11)
Econo-Kool® Transmission Oil Cooler
“In the instructions, a fitting kit #252 was required for my particular truck. It was wrong…#395 was the correct kit. Folks at Imperial advised me of”