1978 Pontiac Grand Am Transmission Parts

Name: Taper Bearing Cone
Brand: Driveworks
SKU: S-M-88048
Price: 11.29 USD

Below you will find various in-demand Pontiac Transmission Parts, components and accessories for your 1978 Grand Am. Advance Auto Parts has popular Grand Am parts like Transmission Cooler and Parts, Transmission Seals, Automatic Transmission Parts and more. You’ll also find aftermarket and OEM Transmission Parts for other Grand Am model years including 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005 and more. Select a category of 1978 Pontiac Grand Am Transmission Parts below and start saving instantly.

Popular 1978 Pontiac Grand Am Transmission Parts Categories

Axle Output Shaft Bearings

Gear Shift Levers

Transmission Torque Converters

OE Transmission Coolers

Transmission Solenoids

Transmission Shift Cables

Automatic Transmission Governors

Countershaft Bearings

Back Up Lamp Switches

Transmission Pan Gaskets

Automatic Transmission Line Connectors

Pinion Bearings

Transmission Mounts

Transmission Oil Pans

Transmission Master Repair Kits

Transmission Rebuild Kits

Transmission Dipsticks

Automatic Transmission Differential Bearings

Transmission Bushings

Detent Cables

Automatic Transmission Oil Pump Seals

Transmission Modulator Valves

Pinion Seals

Miscellaneous Shift Shaft Seals

Automatic Transmission Dipstick Seals

Transmission Seals and O-rings

Automatic Transmission Kickdown Cable Brackets

Manual Transmission Bearing and Seal Overhaul Kits

Torque Converter Seals

Extension Housing Seals

Manual Transmission Output Shaft Seals

Manual Transmission Gasket Sets

Miscellaneous Automatic Transmission Seals

Transmission Shift Kits

Input Shaft Bearings

Transmission Bands

Manual Transmission Blocking Rings

Automatic Transmission Selector Shaft Seals

Automatic Transmission Flexplate Mounting Bolts

Automatic Transmission Detent Cable Seals

Shift Shaft Seals

Automatic Transmission Oil Pump Gaskets

Automatic Transmission Fluid Filler Tube Seals

Automatic Transmission Oil Pump O-Rings

Automatic Transmission Speedometer Pinion Seals

Front Pump Seals

Automatic Transmission Seals

Automatic Transmission Shifter Cable Brackets

Torque Converter Bearings

Automatic Transmission Friction Discs

Essential Transmission Parts for 1978 Pontiac Grand Ams

from

$11.29

Value-priced bearing meets all cataloged application requirements.

Product Features:

Brand may vary by location

from

$7.99

AT EXT HOUSING SEAL

from

$269.99

These B&M automatic transmission deep pans provide additional fluid capacity and cooling ability. No modifications to the dipstick are needed. They include a drain plug for clean and easy fluid changes. Adds 3 quarts to the Transmission.

Product Features:

Additional Oil Capacity
More Cooling Ability
No Dipstick Modification
Some Include Fluid Pickup Extension
Built-In Drain Plugs
Cast Aluminum

from

$14.79

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

from

$14.79

Product Features:

Transmission line fitting kit
GM, Jeep; 5/8″-18 inverted flare
Helps simplify transmission cooler installation
Allows for auxiliary transmission cooler installation without cutting OE lines
Crafted from high-quality material that makes it durable and longer-lasting
A high quality, direct fit OE replacement
Easily connects the transmission cooler line to the cooler hose
Coated for extra protection against corrosion

from

$28.99

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

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$256.99

AT MSTR REP KIT PLUS

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$32.99

Detent cables connect the throttle mechanism to the transmission. Old cables can bind, break, or just become sluggish. The best repair is to replace the old cable with a new one. ATP Detent cables are designed to fit and function just like the original part to ensure durability and long life.

Product Features:

Includes brackets, grommets, etc to match original
Helps transmission determine ideal downshift
Improves vehicle performance

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$24.99

AT CLUTCH PLATE

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$14.99

AT OIL PUMP SEAL

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$6.29

Value-priced seal meets all cataloged application requirements.

Product Features:

Brand may vary by location

from

$193.99

AT BANNER KIT

from

$14.99

You can forget about the problem of shearing a torque converter bolt after you install these super strong 200,000 Pounds Per Square Inch gems. They are designed for each specific application and provide the optimum grip. Kits come with hardened parallel ground washers.

Product Features:

Super Strong, Rated At 200,000 PSI
Kits Come With Hardened Parallel Ground Washers
Delivers ARP Quality And Reliability
Made In USA
0.590″ Underhead Length
M10 X 1.5 Thread Size
Set of 3

from

$5.29

Value-priced seal meets all cataloged application requirements.

Product Features:

Brand may vary by location

from

$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

from

$27.99

AUTO TRANS BAND

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$460.99

Converter: Th400 24-2800 Stall

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$84.99

When swapping the TH400 transmission into any vehicle, this kit makes installation of the transmission’s kickdown feature a snap. This switch mounts to either a TH700R4, TH200, TH200-R4 or TH350 throttle cable bracket.

Product Features:

Allows High Speed Cruise
Cruise In Overdrive
Prevents Part Throttle Kickdown
Quick Installation

from

$109.99

This kit allows you to adjust the shift points of your transmission after it is installed in your vehicle. The Governor Recalibration Kit is very useful if you have a vehicle that is very light; has a low rear-end gear ratio.

Product Features:

Adjust Shift Points Of Transmission
Useful For Light Vehicles
For Low Rear End Gear Ratio
Or Useful If It Is Conversion

from

$419.99

The Pro Ratchet shifter is one of our most popular and easiest to operate race shifters. Features include positive ratcheting design that self-centers the handle after each shift giving you maximum clearance behind the shifter and will not allow you to mi

Product Features:

Single Hand Operated Reverse Lockout
Reverse Lockout Meets NHRA And IHRA Requirements
Quick And Easy To Operate
Stick Always Returns To Center Position
Easiest Unit To Double Shift w/Air/CO2/Electric Mech

from

$4.79

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

from

$7.99

AT SEL SHAFT SEAL

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$10.99

AT OIL PUMP GASKET

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$2.79

Product Features:

ATP Transmission Seals And Gaskets are exact fit, no compromise replacement parts

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$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

from

$3.99

AT SOLENOID SEAL

from

$16.49

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

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

Upgrade your 1978 Pontiac Grand Am with Top-Quality Transmission Parts

When it comes to maintaining or upgrading your 1978 Pontiac Grand Am, nothing is more important than using high-quality OEM or aftermarket parts that you can trust. Whether you’re repairing damage to your Pontiac or enhancing its overall performance, Transmission Parts are key to keeping your Grand Am functioning at its best. At Advance Auto Parts, we offer a wide selection of 124 Transmission Parts for the 1978 Pontiac Grand Am, designed to meet your needs without breaking the bank. From Transmission Cooler and Part replacements to Transmission Seals 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 Transmission Parts for any vehicle can be a hassle, especially if you’re on a budget. But with Advance Auto Parts, you can find high-quality Transmission Parts for your 1978 Pontiac Grand Am at great prices. Our Transmission Parts inventory for this model ranges from just $2.49 to $1,150.00, with an average price of $123.67. Our 124 Transmission Parts in stock come from 16 trusted brands, so you’re sure to find the right part for your 1978 Pontiac Grand Am 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 Pontiac Grand Am, we stock popular OEM and aftermarket Transmission Parts from top names like National, Imperial, Driveworks, and more. National Transmission Parts start at just $4.99 and boast an impressive 4 stars average rating from customers. Imperial and Driveworks also bring quality to the table, with Transmission Parts available starting at $2.49, and at an average 4 stars rating. With 983 customer reviews and counting, our 1978 Pontiac Grand Am Transmission Parts 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 Transmission Part upgrades. Explore related part types like Batteries and Chargers, Oil and Lubricants and more to make sure your 1978 Pontiac Grand Am is always ready to roll. We’re committed to providing you with everything you need to keep your Grand Am in top shape, all in one place. Start shopping confidently below for your 1978 Pontiac Grand Am!

Best-Selling Transmission Cooler and Parts for 1978 Pontiac Grand Ams

Enhance the driving experience in your Pontiac with 9 quality Transmission Cooler and Part components, starting at $52.99.

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from

$85.99

Product Features:

Imperial high-performance transmission cooler
Size: 3/4″ x 10″ x 15-7/8″
SAE 45-degree fittings for maximum reliability
Electrostatic powder-coated to prevent corrosion
SAE 45 degree fittings for maximum reliability
Electrostatically powder coated to prevent corrosion
All aluminum lightweight construction

from

$73.99

The Imperial Maxi-Cool® XL’s plate and fin design offer excellent cooling efficiency in a compact, space-efficient design.

Product Features:

Imperial Maxi-Cool® plate and fin transmission cooler
Size: 3/4″ x 11″ x 7-1/2″
Mid-size and full-size cars, pickups
GVWR up to 20,000 lbs.; towing up to 2,500 lbs.

from

$59.99

Product Features:

Imperial Rapid-Cool« plate and fin transmission cooler
Size: 3/4″ x 11″ x 6″
Sub-compact to compact cars
GVWR up to 18,000 lbs.
Compatible with OEM cooler systems

from

$54.99

Product Features:

Imperial Econo-Kool« tube and fin transmission cooler
Size: 3/4″ x 5″ x 15-7/8″
Compact and mid-size cars
GVWR up to 16,000 lbs.; towing up to 2,500 lbs.
Compatible with OEM cooler systems
Ultrasonically soldered for reliability
100% pressure testing to 150 PSI for quality assurance
High efficiency turbulators

from

$80.99

Product Features:

Imperial Rapid-Cool« plate and fin transmission cooler
Size: 3/4″ x 11″ x 9-1/2″
Pickup trucks and vans, class “C” motor homes, travel trailers to 24′
GVWR up to 24,000 lbs.; towing up to 5,000 lbs.
33% more efficient than a comparable tube and fin design

from

$52.99

Product Features:

Mid-size and full-size cars, pickups
GVWR up to 18,000 lbs.; towing up to 3,500 lbs
Compatible with OEM cooler systems
Ultrasonically soldered for reliability
100% pressure testing to 150 PSI for quality assurance
High efficiency turbulators

from

$81.99

High Performance Transmission Oil Cooler 3/4″ x 7-1/2″ x 15-1/2″. Heavy duty. Black. Imperial High Performance coolers are designed to provide outstanding cooling as well as complement other high-performance accessories.

Product Features:

Imperial high-performance transmission cooler
Size: 3/4″ x 7-1/2″ x 15-7/8″
SAE 45-degree fittings for maximum reliability
Electrostatic powder-coated to prevent corrosion

from

$67.99

Product Features:

Imperial high-performance transmission cooler
Size: 3/4″ x 7-1/2″ x 12-1/2″
SAE 45-degree fittings for maximum reliability
Electrostatic powder-coated to prevent corrosion
SAE 45 degree fittings for maximum reliability
Electrostatically powder coated to prevent corrosion
All aluminum lightweight construction

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

Top Picks for 1978 Pontiac Grand Am Automatic Transmission Parts

Upgrade Pontiac Grand Ams with top-quality Automatic Transmission Parts parts, including 24 OEM and aftermarket selections for your 1978 model.

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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 and bronze for outstanding durability and performance
Oil impregnated for extended life
Industry leading coverage
Professional technicians know they can depend on National

from

$3.99

AT SOLENOID SEAL

from

$28.99

Cable Bracket, GM APPLICATION: For TH400, 350, 250, 200, 700R4, 2004R transmissions.

Product Features:

Shifter Service Parts

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$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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$33.49

Fully adjustable vacuum modulator to maintain accurate shift points.

Product Features:

Meets or exceeds OE fit, form and function

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$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

from

$43.99

B&M’s vacuum modulator is fully adjustable, this allows you to tailor your shift points to within a range of 2-4 mph. Comes preadjusted for normal shift points. For TH350 and TH400.

Product Features:

Fully Adjustable
Allows You To Tailor Shift Points
Comes Supplied Pre-Adjusted

from

$34.99

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:

Quick Link Connector
Anti-Clogging Design

from

$22.99

Detent cables connect the throttle mechanism to the transmission. Old cables can bind, break, or just become sluggish. The best repair is to replace the old cable with a new one. ATP Detent cables are designed to fit And function just like the original part to ensure durability And long life.

Product Features:

Includes brackets, grommets, etc to match original
Helps transmission determine ideal downshift
Improves vehicle performance

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.

from

$41.49

ATP Universal Fit Detent Cables are designed to cover many applications and are no compromise replacement parts

Product Features:

Includes brackets, grommets, etc to match original
Fits many GM transmissions
Adjustable

from

$5.99

AT OIL PUMP ORING

from

$7.99

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

from

$11.99

AT FRT PUMP BUSHING

from

$48.99

AT MODULATOR VALVE

from

$4.79

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

from

$10.99

AT FRT PUMP BUSHING

from

$83.29

Billet aluminum handle with flexible braded steel tube mounts to the firewall. 29-3/4 inch long.

Product Features:

Braided Stainless Steel
Firewall Mounting
Includes Oil Fill Tube

from

$109.99

Adjust Shift Points Of Transmission
Useful For Light Vehicles
For Low Rear End Gear Ratio
Or Useful If It Is Conversion

from

$108.99

What better way to check you oil level by using one of B&M’s transmission fluid dipsticks? The cap screws into the tube and is O-ring sealed, while the base of the tube has a sealing grommet where it goes into the transmission.

Product Features:

Automatic Transmission Dip Stick
Mounts to bellhousing
Sold as a kit
Natural finish
Fits TH350 & TH350C

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$84.99

These universal fit adjustable cables will work in 95 percent of all listed transmission applications, yet are less expensive than OE models. Use as straight replacement cable or ease the installation of transmission swaps.

Product Features:

Universal Fit Adjustable
Less Expensive Than OE Models
Ease Trans. Swap Installation

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$54.99

AT CONTR SOLENOID

from

$27.99

AUTO TRANS BAND

from

$24.99

AT CLUTCH PLATE

In-Demand Automatic Transmission Pan and Gaskets for 1978 Pontiac Grand Ams

Select from 10 premium Automatic Transmission Pan and Gaskets parts for your 1978 Pontiac Grand Am, with prices ranging from $8.29 to $269.99.

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from

$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

from

$63.99

These pans are offered in stock depth or deep with extra capacity and available in both steel and aluminum to fit your specific needs. Each kit Includes the drain plug, gasket and hardware.

Product Features:

Chrome Plated For Great Looks
Fits As Direct Replacement For Stock
Includes: Drain Plug, Drain Plug Gasket, and Cork Pan Gasket
Pan Height: 2.5″ Overall Height

from

$116.99

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!

Product Features:

Additional Oil Capacity
More Cooling Ability
No Dipstick Modification
Some Include Fluid Pickup Extension
Built-In Drain Plugs
Chrome Plated Steel

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

from

$10.99

AT OIL PUMP GASKET

from

$116.99

Stock Depth And Capacity
Chrome Plated
Includes Drain Plug/Gasket/Hardware

from

$8.29

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

from

$36.49

These transmission oil pan gaskets are made with a glass-filled nylon carrier with molded rubber on both the top and bottom of the gasket. Each bolt hole has a torque limiter that helps to avoid over-torqueing the bolts for a reliable seal. These gasket are reusable and can be cleaned using soap and water. Ideal for applications that require frequent service. Made in the USA.

Product Features:

Molded rubber over glass filled nylon carrier
Reusable ¿ easy cleaning w/ soap & water
Reusable ┐ easy cleaning w/ soap & water
Torque Limiters ¿ helps to avoid over torqueing gaskets
Torque Limiters ┐ helps to avoid over torqueing gaskets
Applications for many common transmissions
Ideal for applications that require frequent service
Made in the USA

from

$269.99

Additional Oil Capacity
More Cooling Ability
No Dipstick Modification
Some Include Fluid Pickup Extension
Built-In Drain Plugs
Cast Aluminum

from

$59.19

EDP Black Steel
Stock capacity
Includes drain plug, gasket and hardware

Most Sold 1978 Pontiac Grand Am Transmission Mounts

Explore our best-selling Pontiac parts for the 1978 Grand Am among 1 OEM and aftermarket options starting from $6.49.

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from

$6.49

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 77-82; CHEV 78-05; GMC 81-99; OLDS 78-83; PONT 75-93;. 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: 1975-2005
Weight approx: 1 Lbs
HEIGHT: 1.95 INCH / 49.53 MM WITHOUT STUD
STUD AND BOLT HOLES INLINE
STUD: M10-1.50
MOUNT HOLES: 3.75 INCH / 95.25 MM

Top-Rated Transmission Parts Brands For Your 1978 Pontiac Grand Am

Shop for the best-rated brands offering Transmission Parts and other products for your 1978 Pontiac Grand Ams. Below you’ll find some of our best rated Transmission Parts from National, Imperial, and Driveworks, and more. Transmission Parts from these brands that fit a 1978 Grand Am start at just $2.49 and are rated as high as 4 stars. OEM and aftermarket Transmission Parts don’t get more top quality, durable, and affordable than from the brands below.

Popular National 1978 Pontiac Grand Am Transmission Parts

When it comes to maintaining or upgrading your 1978 Pontiac Grand Am, using quality Transmission Parts is essential to ensure durability and a perfect fit. National ticks all of those boxes. We offer a wide selection of National Transmission Parts, specifically designed for the 1978 Pontiac Grand Am. With over 12 National brand Transmission Parts in stock, you’re sure to find what you need. The prices for these top-notch parts start as low as $4.99, with an average price of just $13.22. Plus, with over 104 customer reviews and an average rating of 4 stars, you can trust that our National Transmission Parts will get the job done right. Choose Advance Auto Parts for reliability, quality, and expert-approved parts that keep your vehicle running strong.

from
$14.79

(3)

Bearings

“good product,”

from
$6.99

(5)

Multi Purpose Seal

“This part was exactly the same as the part on my 2004 Trailblazer 4.2L, even had the same number stamped on it.”

from
$4.99

This product is not rated

Multi Purpose Seal

“”

Popular Imperial 1978 Pontiac Grand Am Transmission Parts

Imperial auto parts is one of the highest quality Transmission Part brands in the market. Any 1978 Pontiac Grand Am owner should feel confident when installing genuine Imperial parts in their vehicle. To ensure the best fit and performance for your 1978 Grand Am, Advance Auto Parts carries a full inventory of 10 Imperial Transmission Parts. Plus you will be keeping your Pontiac in peak condition while saving money because prices on these Imperial Transmission Parts range from $14.79 to $85.99, plus, with more than 110 customer reviews and an impressive 4 stars average rating, you can be confident the Fram Transmission Parts below will deliver on both quality and value.

from
$65.99

This product is not rated

Econo-Kool® Transmission Oil Cooler

“”

from
$67.99

This product is not rated

High Performance Transmission Oil Cooler

“”

from
$85.99

(4)

High Performance Transmission Oil Cooler

“good quality,easy to install.”

FAQs for 1978 Pontiac Grand Am Transmission Parts

Which Transmission Parts are best-sellers for 1978 Pontiac Grand Ams?

Out of 124 Transmission Parts that fit 1978 Pontiac Grand Ams, the following parts are the top sellers:

Taper Bearing Set (5050537) – $10.29
Bearings (3275809) – $15.99
Cylindrical Bearing (15050070) – $22.99

What’s the price range for 1978 Pontiac Grand Am Transmission Parts?

Transmission Part prices for the 1978 Pontiac Grand Am start at $2.49 and go up to $1,150.00 for the most premium parts.

What’s the average price of a Transmission Part for a 1978 Pontiac Grand Am?

The average price for Transmission Parts for the 1978 Pontiac Grand Am is $123.67. Keep in mind the variety of part types within our Transmission Part category so you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Transmission Parts for other Pontiac Grand Am model years?

Yes, we currently carry Transmission Parts for 26 model years of Pontiac Grand Ams between 1973 and 2005. Transmission Parts are bought most frequently for the following model years: 2005, 2004, 2003, 2002, 2001, 2000, 1999, 1998, and 1997.

What are the cheapest Transmission Parts for my 1978 Pontiac Grand Am?

The cheapest 1978 Pontiac Grand Am Transmission Parts we carry in stock are:

Auto Transmission Shift Shaft Seal (11407786) – $2.49
Automatic Transmission Speedometer Pinion Seal (11236107) – $2.79
AT DETENT CABLE SEAL (10861026) – $3.49
AT SOLENOID SEAL (11239035) – $3.99
Shift Shaft O-Ring (12009712) – $3.99

What are the top-rated Transmission Parts that fit the 1978 Pontiac Grand Am?

Out of 983 reviews by customers, our 1978 Pontiac Grand Am Transmission Parts have an average customer rating of . These are some of the highest-rated Transmission Part types for the 1978 Pontiac Grand Am and their top-rated products:

Automatic Transmission Pan and Gaskets
- Transmission Oil Pan Gasket (5181054) – $8.49
- Automatic Transmission Oil Pan (17360643) – $63.99
- Chrome Deep Transmission Pan For TH 350 Transmission (17130016) – $116.99
Transmission Connectors
- Transmission Oil Pan Gasket (5181054) – $8.49
- Automatic Transmission Oil Pan (17360643) – $63.99
- Chrome Deep Transmission Pan For TH 350 Transmission (17130016) – $116.99

What types of Transmission Parts do you sell for my 1978 Pontiac Grand Am?

As of 2/5/25, these are some of the most in-demand types of Transmission Parts for a 1978 Pontiac Grand Am:

Can I get help with 1978 Pontiac Grand Am Transmission Part orders?

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

What is your return policy for Pontiac Grand Am Transmission Parts?

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

1978 Pontiac Grand Am Transmission Parts

Driveworks – Taper Bearing Cone (Part No.S-M-88048)

ATP – AT EXT HOUSING SEAL (Part No.SO-22)

B & M – Transmission Cast Deep Pan, Brushed Finish TH-350 (Part No.30280)

National – Bearings (Part No.M802011)

Imperial – Transmission Line Fitting Kit (Part No.240390)

Felpro – Transmission Oil Pan Gasket (Part No.TOS 18715)

ATP – AT MSTR REP KIT PLUS (Part No.CMS-20)

ATP – Automatic Transmission Detent Cable (Part No.Y-772)

ATP – AT CLUTCH PLATE (Part No.CC-22)

ATP – AT OIL PUMP SEAL (Part No.CO-4)

Driveworks – Oil Seal (Part No.S-6712NA)

ATP – AT BANNER KIT (Part No.SM-11)

ARP Auto Racing – For Use With General Motors, 0.590" Under Head L, 10 Mm X 1.5 Thread Size (Part No.230-7304)

Driveworks – Oil Seal (Part No.S-8610)

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

ATP – AUTO TRANS BAND (Part No.CX-32)

Hays – Converter: Th400 24-2800 Stall (Part No.97-1D24Q)

B & M – Kickdown Switch Kit For TH400 Transmission (Part No.20297)

B & M – Governor Recalibration Kit For TH-700R4, TH-400 and TH-350 Transmission (Part No.20248)

B & M – Automatic Shifter, Pro Ratchet 3 and 4 Speed (Part No.80842)

Dorman – Clutch Pilot Bushing (Sold by each) (Part No.690-023)

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

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

ATP – Automatic Transmission Speedometer Pinion Seal (Part No.SO-13)

National – Bearings (Part No.A-2)

ATP – AT SOLENOID SEAL (Part No.JO-15)

National – Multi Purpose Seal (Part No.5208)

National – Cylindrical Bearing (Part No.5707)

Imperial – High Performance Transmission Oil Cooler (Part No.240516)

Imperial – Maxi-Kool® XL Transmission Oil Cooler (Part No.243007)

Imperial – Plate and Fin Style Trans Cooler 3/4" x 5-7/8" x 11" Light Duty (Part No.243006)

Imperial – Econo-Kool® Transmission Oil Cooler (Part No.242010)

Imperial – Plate and Fin Style Trans Cooler 3/4" x 9-1/2" x 11" Heavy Duty (Part No.243008)

Imperial – Econo-Kool® Transmission Oil Cooler (Part No.242012)

Imperial – High Performance Transmission Oil Cooler (Part No.240514)

Imperial – High Performance Transmission Oil Cooler (Part No.240512)

Imperial – Econo-Kool® Transmission Oil Cooler (Part No.242016)

Driveworks – Oil Seal (Part No.S-9613S)

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

ATP – AT OIL PUMP SEAL (Part No.CO-37)

ATP – AT DPSTK TUBE SEAL (Part No.SO-35)

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

National – Multi Purpose Seal (Part No.2043)

National – Multi Purpose Seal (Part No.8610)

Driveworks – Oil Seal (Part No.S-8610)

ATP – AT DETENT CABLE SEAL (Part No.SO-37)

ATP – AT EXT HOUSING SEAL (Part No.HO-9)

ATP – AT EXT HOUSING SEAL (Part No.SO-22)

ATP – Automatic Transmission Speedometer Pinion Seal (Part No.SO-13)

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

Driveworks – Oil Seal (Part No.S-7412S)

National – Multi Purpose Seal (Part No.240735)

ATP – AT SEAL (Part No.TO-34)

ATP – AT SPEED PINION SEAL (Part No.SO-34)

Driveworks – Auto Transmission Shift Shaft Seal (Part No.S-8792S)

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

USA Standard Gear – ManTransBrg-SealKit (Part No.70267)

ATP – AT SEAL (Part No.SO-39)

USA Standard Gear – ManTransBrg-SealKit (Part No.76455)

FAG US – REPAIR SLEEVE (Part No.SR3506)

USA Standard Gear – ManTransSmallPartKit (Part No.79024)

ATP – AT OIL PUMP SEAL (Part No.CO-4)

USA Standard Gear – Shift Shaft O-Ring (Part No.76151)

National – Bearings (Part No.PB-656-HD)

ATP – AT SOLENOID SEAL (Part No.JO-15)

B & M – Cable Bracket (Part No.30499)

Pro-King – Automatic Transmission Vacuum Modulator (Part No.MD-48)

Pro-King – Automatic Transmission Vacuum Modulator (Part No.MD-28)

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

B & M – Modulator (Part No.20234)

Pro-King – Automatic Transmission Solenoid (Part No.52-0210)

ATP – ATP Automatic Transmission Detent Cable (Part No.Y-100)

Edelbrock – Automatic Trans Cable Adapter #8026 for GM 2004R, 700R4, 4L60 Transmissions (Part No.8026)

ATP – Automatic Transmission Universal Detent Cable 28 to 48 inches (Part No.Y-752)

ATP – AT OIL PUMP ORING (Part No.SO-21)

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

ATP – AT FRT PUMP BUSHING (Part No.CB-30)

ATP – AT MODULATOR VALVE (Part No.JX-76)

Dorman – Clutch Pilot Bushing (Sold by each) (Part No.690-023)