1978 GMC G15 Transmission Parts

Essential 1978 GMC G15 Transmission Parts

Mr. Gasket – Automatic Transmission Oil Pan Gasket (Part No.8690)

Automatic Transmission Oil Pan Gasket

from

$22.99
Made from cork/neoprene gasket material which features excellent compressibility and high recovery to create a positive seal.

Product Features:
  • High density cork-nitrile rubber blend
  • Excellent compressibility and high recovery to create a positive seal
  • Excellent Compressibility
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National – Multi Purpose Seal (Part No.240735)

Multi Purpose Seal

from

$5.49
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
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ATP – AT OIL PUMP GASKET (Part No.SG-27)

AT OIL PUMP GASKET

from

$10.99
AT OIL PUMP GASKET

Mr. Gasket – Automatic Transmission Oil Pan Gasket (Part No.8691)

Automatic Transmission Oil Pan Gasket

from

$30.19
Made from cork/neoprene gasket material which features excellent compressibility and high recovery to create a positive seal.

Product Features:
  • High density cork-nitrile rubber blend
  • Excellent compressibility and high recovery to create a positive seal
  • Excellent Compressibility
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National – Bearings (Part No.A-3)

Bearings

from

$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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B & M – Transmission Cast Deep Pan, Brushed Finish – TH400 (Part No.20280)

Transmission Cast Deep Pan, Brushed Finish - TH400

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$259.99
Add fluid capacity to your transmission. Extra fluid means more cooling, and more cooling means better efficiency and performance. Add life to your transmission with a B&M Deep Pan! Adds 2 additional quarts to the system.

Product Features:
  • Additional Oil Capacity
  • More Cooling Ability
  • No Dipstick Modification
  • Some Include Fluid Pickup Extension
  • Built-In Drain Plugs
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ATP – AT OIL PUMP ORING (Part No.SO-21)

AT OIL PUMP ORING

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$8.99
AT OIL PUMP ORING

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

AT DETENT CABLE SEAL

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$3.99
AT DETENT CABLE SEAL

National – Cylindrical Bearing (Part No.5707)

Cylindrical Bearing

from

$22.99
Manufactured with premium-grade steel, National® cylindrical bearings are designed and engineered to meet OE specifications.

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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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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Dorman – Clutch Pilot Bushing (Part No.690-014.1)

Clutch Pilot Bushing

from

$7.99
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 – Multi Purpose Seal (Part No.5208)

Multi Purpose Seal

from

$18.29
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 – Taper Bearing Cup (Part No.S-M-88010)

Taper Bearing Cup

from

$5.29
Value-priced bearing meets all cataloged application requirements.

Product Features:
  • Brand may vary by location
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Imperial – Econo-Kool® Transmission Oil Cooler (Part No.242016)

Econo-Kool® Transmission Oil Cooler

from

$65.99
Product Features:
  • Imperial Econo-Kool« tube and fin transmission cooler
  • Size: 3/4″ x 7-1/2″ x 15-7/8″
  • Pickup trucks and vans, class “C” motor homes, travel trailers to 24′
  • GVWR up to 22,000 lbs.; towing up to 5,000 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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Pro-King – Automatic Transmission Vacuum Modulator (Part No.MD-48)

Automatic Transmission Vacuum Modulator

from

$34.49
Fully adjustable vacuum modulator to maintain accurate shift points.

Product Features:
  • Meets or exceeds OE fit, form and function
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Pro-King – Automatic Transmission Basic Rebuild Kit (Part No.KB-838)

Automatic Transmission Basic Rebuild Kit

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$141.99
This Basic Rebuild Kit contains a complete gasket Kit and friction set. Each Rebuild Kit contains only the highest quality parts that meet or exceed OE specifications.

Product Features:
  • Does not include steels or filter
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Driveworks – Tapered Roller Bearing (Part No.S-M-802048)

Tapered Roller Bearing

from

$16.99
Product Features:
  • Brand may vary by location
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ATP – AT DPSTK TUBE SEAL (Part No.SO-35)

AT DPSTK TUBE SEAL

from

$5.99
AT DPSTK TUBE SEAL

Mr. Gasket – Chrome Automatic Transmission Dipstick & Tube – 27" Length (Part No.9764)

Chrome Automatic Transmission Dipstick & Tube - 27" Length

from

$30.99
Includes dipstick with chromed steel handle and chromed steel dipstick tube with mounting tab. 27 inch long.

Product Features:
  • Fits GM Th350 – Chevy Specific. Modify For Others
  • 27 In Length
  • Chrome Plated Steel
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Driveworks – Oil Seal (Part No.S-9449)

Oil Seal

from

$1.99
Value-priced seal meets all cataloged application requirements.

Product Features:
  • Brand may vary by location
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Edelbrock – Automatic Trans Cable Adapter #8026 for GM 2004R, 700R4, 4L60 Transmissions (Part No.8026)

Automatic Trans Cable Adapter #8026 for GM 2004R, 700R4, 4L60 Transmissions

from

$18.99
Product Features:
  • Edelbrock Part # 8026 GM Transmission adapter is for use with 2004R, 700R4, 4L60 transmissions.
  • This kit relocates the pin position on an Edelbrock Carburetor when hooking up to a throttle valve style transmission (700R4, 2004R, 4L60).
  • The pin location is critical as the TV controls line pressure, shift points, shift firmness, and part throttle downshifts.
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National – Multi Purpose Seal (Part No.5092)

Multi Purpose Seal

from

$44.49
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

ATP – AT SEL SHAFT SEAL (Part No.SO-19)

AT SEL SHAFT SEAL

from

$7.99
AT SEL SHAFT SEAL

Anchor – Transmission Mount: Rear, 1 Piece (Part No.2268)

Transmission Mount: Rear, 1 Piece

from

$8.29
The purpose of the mount is to support the engine and transmission on the chassis and dampen vibration and noise from reverberating to the rest of the vehicle. Engine and Transmission Mounts are engineered and manufactured to meet or exceed OEM specifications using the latest CAD/CAM engineering process to ensure superior quality, form, fit and function. Only premium quality materials are used in the manufacturing process to guarantee precise performance and maximum durability. Applicable to BUIC 66-73; CHEV 58-84; GMC 67-84; OLDS 68-72; PONT 61-77;. Please verify your application.

Product Features:
  • MAXIMUM LIFE & PERFORMANCE: Both natural and SBR (Styrene Butadiene) rubber provide good abrasion resistance and aging stability to ensure maximum life and performance.
  • MEETS OR EXCEEDS DUROMETER MEASUREMENTS: All rubber material is manufactured to specific Durometer (hardness) measurements based on the vehicle’s application requirements.
  • HARDENED STEEL FASTENERS: All fasteners are made of hardened steel with heat treated Grade #5 bolts.
  • SUPERIOR BOND: A special Chemlock® bonding agent is used to ensure a superior rubber-to-metal bond.
  • HYDRAULIC MOUNT DESIGN: Hydraulic Mounts (applicable where OE) are designed for most front wheel drive vehicles because transverse drive train mounting.
  • For Years: 1958-1984
  • Weight approx: 2 Lbs
  • RUBBER CROWN WITH AIR GAP
  • HEIGHT WITHOUT STUDS: 1.9 INCH: 48.25 MM
  • STUDS AND BOLT HOLES INLINE
  • STUD CENTERLINE: 1.5 INCH: 38.1 MM
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ATP – AT SPEED PINION SEAL (Part No.SO-34)

AT SPEED PINION SEAL

from

$9.99
AT SPEED PINION SEAL

ATP – AT SPD PINION SEAL (Part No.SO-38)

AT SPD PINION SEAL

from

$5.99
AT SPD PINION SEAL

B & M – Transmission Accessories, Converter Lockup Controller (Part No.70244)

Transmission Accessories, Converter Lockup Controller

from

$309.99
The B&M converter lockup controller provides dash-mounted control to govern converter lockup at any speed between 30 and 90 mph. These kits eliminate converter lock and unlock cycling and premature unwanted converter lockup.

Product Features:
  • Dash Mounted Control For Speeds Between 30-90 mph
  • LED Indicates Locked OR Unlocked
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Popular 1978 GMC G15 Transmission Parts Categories

1978 GMC G15 Transmission Parts

You count on your 1978 GMC G15 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 143 Transmission Parts ranging in price from $1.99 to $1,150.00, you’re sure to find everything you need for your 1978 GMC G15.

Brands matter. If you want to shop a specific Transmission Parts brand, we stock 17 different brands like National, Imperial, and Driveworks. 1978 GMC G15 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 1,954 extensive product reviews on 1978 GMC G15 Transmission Parts. Some of the top-rated Transmission Parts products we carry are Multi Purpose Seal with 4.4 stars and Automatic Shifter, Z-Gate with 4.4 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 G15 below to get started!

Top-Rated Transmission Parts Brands For Your 1978 GMC G15

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 G15 running right for years to come. In our inventory you’ll find brands like National, Imperial, Driveworks, 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 G15 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 G15 Transmission Parts

What are the most purchased Transmission Parts for the 1978 GMC G15?

Out of 143 Transmission Parts for the 1978 GMC G15, the most popular in our inventory are:
Bearings
from $14.99
(21)
Bearings
Miscellaneous Transmission Bearings
Cylindrical Bearing
from $22.99
(20)
Cylindrical Bearing
Axle Output Shaft Bearings
Econo-Kool® Transmission Oil Cooler
from $39.99
(10)
Econo-Kool® Transmission Oil Cooler
OE Transmission Coolers

What are the top-rated 1978 GMC G15 Transmission Parts?

Top-rated Transmission Parts for your 1978 GMC G15 based on customer reviews/ratings are:
Multi Purpose Seal
from $6.99
(20)
Multi Purpose Seal
“The product works well”
Automatic Shifter, Z-Gate
from $279.99
(11)
Automatic Shifter, Z-Gate
“Good Product, Great For The Price”
Automatic Transmission Vacuum Modulator
from $34.49
(11)
Automatic Transmission Vacuum Modulator
“worked”