1978 Cadillac Seville Performance Transmissions

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Keep Your 1978 Cadillac Seville in Top Shape with Quality Performance Transmissions

Whether you’re repairing or upgrading your Performance Transmission, using high-quality parts is key to keeping your 1978 Cadillac Seville looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Performance Transmission Dipstick Tubes, Performance Engine and Transmission Mounts, and Performance Transmission Shift Kits. Whether you’re replacing a damaged part or enhancing your truck’s style and protection, you’ll find exactly what you need to get the job done right.

Top-Rated Performance Transmissions from Trusted Brands

Looking for a reliable Performance Transmission? We’ve got you covered with options from brands you know and trust like Energy Suspension. For example, Energy Suspension Performance Transmissions start at just $46.49 with an average 4.4 star rating. With over 34 reviews and a solid 5 star average, you can shop with confidence knowing other Cadillac Seville owners approve.

Competitive Prices and Extensive Inventory

The average price for a 1978 Cadillac Seville Performance Transmission at Advance Auto Parts is around $179.41, with a range that starts at $46.49 and goes up to $511.99. With 6 options in stock from 2 trusted brands, finding the right fit is easy. Popular picks like Motor and Transmission Mount, Transmission Mount, and Transkit For 65-87 TH400 Transmission start at just $105.99 and offer a great balance of form and function.

Explore Related Parts

While you’re upgrading or replacing your Performance Transmission, don’t forget to check out other key components like Performance Air Filters and Performance Distributors. At Advance Auto Parts, we’re here to help you keep your 1978 Cadillac Seville in peak condition, inside and out.

Essential 1978 Cadillac Seville Performance Transmissions

B & M – Aluminum Braided Dip Stick, Fits TH-400 Transmission (Part No.22166)

Aluminum Braided Dip Stick, Fits TH-400 Transmission

from

$127.99
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
See More

Energy Suspension – Motor and Transmission Mount (Part No.3.1130R)

Motor and Transmission Mount

from

$116.99
Product Features:
  • Re-Engineered to Handle High Horsepower
  • Outlasts Rubber
  • Virtually Indestructible
See More

Energy Suspension – High Performance Transmission Mount for Street & Racing Vehicles (Part No.3.1108G)

High Performance Transmission Mount for Street & Racing Vehicles

from

$46.49
A true performance application component for cars, trucks, hot rods, racing/competition, yet popularly used for street vehicles when more horsepower is added. Soft running enough to absorb vibrations for street use yet rugged for racing use. Helps control torque on high performance vehicles. Maintains proper drive shaft angle to help prevent early wear and unexpected power train damage. Replaces the original, short lived and typically too-soft rubber mounts and outdates those hard-running metal transmission mounts. Resistant to under vehicle fluid oils, coolants and road contaminants. Made of Energy’s Hyper-Flex performance polyurethane and heavy duty hardware – for added durability.

Product Features:
  • Unique Safety Interlock Design
  • Impervious to Vehicle Oils and Chemicals
  • Strong Enough Too Handle High Performance
See More

Energy Suspension – Transmission Mount (Part No.3.1132R)

Transmission Mount

from

$105.99
A true performance application component for cars, trucks, hot rods, racing/competition, yet popularly used for street vehicles when more horsepower is added. Soft running enough to absorb vibrations for street use yet rugged for racing use. Helps control torque on high performance vehicles. Maintains proper drive shaft angle to help prevent early wear and unexpected power train damage. Replaces the original, short lived and typically too-soft rubber mounts and outdates those hard-running metal transmission mounts. Resistant to under vehicle fluid oils, coolants and road contaminants. Made of Energy’s Hyper-Flex performance polyurethane and heavy duty hardware – for added durability.

Product Features:
  • Unique Safety Interlock Design
  • Impervious to Vehicle Oils and Chemicals
  • Strong Enough Too Handle High Performance
See More

B & M – Transkit For 65-87 TH400 Transmission (Part No.20229)

Transkit For 65-87 TH400 Transmission

from

$511.99
A B&M transmission in a box! Transform your automatic transmission into a full-tilt B&M performer! This is our ultimate transmission kit – it comes complete with full instructions on how to assemble your transmission to B&M specifications.

Product Features:
  • High Perf. Friction Materials
  • Complete Overhaul Gasket Set
  • Modification Components
  • Replacement Valves
  • Replacement Springs
  • Drain Plug Kit Included
See More

B & M – Transpak For 65-87 TH400 Transmission (Part No.20228)

Transpak For 65-87 TH400 Transmission

from

$166.99
The B&M Transpak has all the features in the Shift Improver Kit, plus it provides additional driver manual control. Retain full automatic features and standard shift points with selector in Drive.

Product Features:
  • Recalibrate Auto. Transmission
  • Optimum Performance
  • Select Your App. Mode
  • Improves Transmission Life
  • Trans. Removal Not Required
  • Downshift At Any Speed
  • Great For Trailer Towing
  • For Heavy Loads Driving Downhill
See More

Most Popular Performance Transmission Dipstick Tube for 1978 Cadillac Sevilles

Enhance your 1978 Cadillac Seville with this popular Performance Transmission Dipstick Tube we have in stock, for $127.99.

B & M – Aluminum Braided Dip Stick, Fits TH-400 Transmission (Part No.22166)

Aluminum Braided Dip Stick, Fits TH-400 Transmission

from

$127.99
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
See More

Best-Selling 1978 Cadillac Seville Performance Engine and Transmission Mounts

Upgrade your Seville with one of our 3 best-selling Performance Engine and Transmission Mounts, earning an average 4.5 stars rating across 17 reviews.

Energy Suspension – High Performance Transmission Mount for Street & Racing Vehicles (Part No.3.1108G)

High Performance Transmission Mount for Street & Racing Vehicles

from

$46.49
A true performance application component for cars, trucks, hot rods, racing/competition, yet popularly used for street vehicles when more horsepower is added. Soft running enough to absorb vibrations for street use yet rugged for racing use. Helps control torque on high performance vehicles. Maintains proper drive shaft angle to help prevent early wear and unexpected power train damage. Replaces the original, short lived and typically too-soft rubber mounts and outdates those hard-running metal transmission mounts. Resistant to under vehicle fluid oils, coolants and road contaminants. Made of Energy’s Hyper-Flex performance polyurethane and heavy duty hardware – for added durability.

Product Features:
  • Unique Safety Interlock Design
  • Impervious to Vehicle Oils and Chemicals
  • Strong Enough Too Handle High Performance
See More

Energy Suspension – Motor and Transmission Mount (Part No.3.1130R)

Motor and Transmission Mount

from

$116.99
Product Features:
  • Re-Engineered to Handle High Horsepower
  • Outlasts Rubber
  • Virtually Indestructible
See More

Energy Suspension – Transmission Mount (Part No.3.1132R)

Transmission Mount

from

$105.99
A true performance application component for cars, trucks, hot rods, racing/competition, yet popularly used for street vehicles when more horsepower is added. Soft running enough to absorb vibrations for street use yet rugged for racing use. Helps control torque on high performance vehicles. Maintains proper drive shaft angle to help prevent early wear and unexpected power train damage. Replaces the original, short lived and typically too-soft rubber mounts and outdates those hard-running metal transmission mounts. Resistant to under vehicle fluid oils, coolants and road contaminants. Made of Energy’s Hyper-Flex performance polyurethane and heavy duty hardware – for added durability.

Product Features:
  • Unique Safety Interlock Design
  • Impervious to Vehicle Oils and Chemicals
  • Strong Enough Too Handle High Performance
See More

Top-Quality Performance Transmission Shift Kits for 1978 Cadillac Sevilles

Choose a high-quality OEM or aftermarket Performance Transmission Shift Kit for Cadillac Sevilles and enjoy top-notch performance from $166.99.

B & M – Transpak For 65-87 TH400 Transmission (Part No.20228)

Transpak For 65-87 TH400 Transmission

from

$166.99
The B&M Transpak has all the features in the Shift Improver Kit, plus it provides additional driver manual control. Retain full automatic features and standard shift points with selector in Drive.

Product Features:
  • Recalibrate Auto. Transmission
  • Optimum Performance
  • Select Your App. Mode
  • Improves Transmission Life
  • Trans. Removal Not Required
  • Downshift At Any Speed
  • Great For Trailer Towing
  • For Heavy Loads Driving Downhill
See More

Our Top Pick for a 1978 Cadillac Seville Performance Transmission Rebuild Kit

Invest in a durable Performance Transmission Rebuild Kit for your 1978 Cadillac, knowing you’re getting trusted brands and expert craftsmanship.

B & M – Transkit For 65-87 TH400 Transmission (Part No.20229)

Transkit For 65-87 TH400 Transmission

from

$511.99
A B&M transmission in a box! Transform your automatic transmission into a full-tilt B&M performer! This is our ultimate transmission kit – it comes complete with full instructions on how to assemble your transmission to B&M specifications.

Product Features:
  • High Perf. Friction Materials
  • Complete Overhaul Gasket Set
  • Modification Components
  • Replacement Valves
  • Replacement Springs
  • Drain Plug Kit Included
See More

Top-Rated Performance Transmission Brands For Your 1978 Cadillac Seville

When it comes to finding the perfect Performance Transmission for your 1978 Cadillac Seville, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 2 trusted brands. We carry the most popular Performance Transmission brands including Energy Suspension, and more, all known for their exceptional customer ratings (average brand rating of 4.4 stars) and competitive prices, as low as $46.49. Purchasing a Performance Transmission from us here at Advance Auto Parts is a smart move for both you and your 1978 Cadillac Seville, providing peace of mind with parts that meet or exceed OEM standards.

Popular Energy Suspension 1978 Cadillac Seville Performance Transmissions

If you’re looking for a top-quality Performance Transmission for your 1978 Cadillac Seville, Advance Auto Parts has exactly what you need with our selection of Energy Suspension Performance Transmissions. We have 1 Energy Suspension Performance Transmissions in stock for this fitment, all known for their durability and precision fit. With prices starting at just $46.49, you’ll find the perfect Performance Transmission for your needs and budget. Energy Suspension Performance Transmissions for the 1978 Cadillac Seville come highly rated, with over 17 customer reviews and an impressive average rating of 4.4 stars. Choosing a Energy Suspension Performance Transmission from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.
High Performance Transmission Mount for Street & Racing Vehicles
from $46.49
(17)
High Performance Transmission Mount for Street & Racing Vehicles
“The best you can buy. Don’t be a cheap skate. Spend a little extra and get the good stuff. I used in 72′ chevy C-10. Has been restrored has 425 hp wit”

FAQs for 1978 Cadillac Seville Performance Transmissions

What are the best-selling Performance Transmissions for 1978 Cadillac Sevilles?

Out of 6 Performance Transmissions that fit 1978 Cadillac Sevilles, the following parts are the top sellers:

What’s the price range for 1978 Cadillac Seville Performance Transmissions?

The prices of Performance Transmissions for the 1978 Cadillac Seville range from $46.49 up to $511.99 for the most premium parts.

What is the average price of a Performance Transmission for a 1978 Cadillac Seville?

The average price for Performance Transmissions for the 1978 Cadillac Seville is $179.41. Keep in mind the variety of part types within our Performance Transmission category, where you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Performance Transmissions for other Cadillac Seville model years?

Yes, we carry Performance Transmissions for 10 model years of Cadillac Sevilles between 1976 and 1987. The following model years are the most popular for Performance Transmission purchases: 1979, 1977, 1976, 1987, 1982, 1981, 1983, 1984, and 1986.

What are the cheapest Performance Transmissions for my 1978 Cadillac Seville?

The cheapest 1978 Cadillac Seville Performance Transmissions we carry are:

Does Advance Auto Parts sell Performance Transmissions for any other 1978 Cadillac models?

Yes. We stock Performance Transmissions for 3 other popular 1978 Cadillac models. Some of the most popular are 1978 DeVille Performance Transmissions, 1978 Eldorado Performance Transmissions, 1978 Fleetwood Performance Transmissions, and 1978 Commercial Chassis Performance Transmissions.

What are the top-rated Performance Transmissions that fit the 1978 Cadillac Seville?

The one 1978 Cadillac Seville Performance Transmission we have in stock is the High Performance Transmission Mount for Street & Racing Vehicles. It is rated 4.5 stars and costs $46.49.

What types of Performance Transmissions do you sell for my 1978 Cadillac Seville?

As of 3/1/26, these are some of the most in-demand types of Performance Transmissions for a 1978 Cadillac Seville:

Can I get help with 1978 Cadillac Seville Performance Transmission orders?

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

What is your return policy for Cadillac Seville Performance Transmissions?

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