1978 GMC G35 Performance Transmissions
Keep Your 1978 GMC G35 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 GMC G35 looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Performance Engine and Transmission Mounts, Performance Transmission Dipstick Tubes, 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.
Competitive Prices and Extensive Inventory
The average price for a 1978 GMC G35 Performance Transmission at Advance Auto Parts is around $93.12, with a range that starts at $34.49 and goes up to $166.99. With 4 options in stock from 3 trusted brands, finding the right fit is easy. Popular picks like Trans Mount: Urethane-Chevy, Transpak For 65-87 TH400 Transmission, and Shift Improver Kit For 68-81 TH-350 Transmission start at just $70.99 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 Fuel Systems and Performance Oil Filters. At Advance Auto Parts, we’re here to help you keep your 1978 GMC G35 in peak condition, inside and out.
Find Your Specific 1978 GMC G35 Performance Transmissions
Looking for the perfect Performance Transmission for your 1978 GMC G35? You’re in the right place. Below, you’ll find links to various types of Performance Transmissions that fit your vehicle. At Advance Auto Parts, we offer only the highest quality OEM and aftermarket Performance Transmissions, ensuring durability and a precise fit for your GMC G35. Whether you’re driving a 1978 model or another popular model year like
1975,
1976, and
1977, we’ve got you covered. Purchasing Performance Transmissions from Advance Auto Parts is a smart choice, giving you access to trusted brands and parts built to perform. Below, you’ll find links to various types of Performance Transmissions that fit your vehicle.
Essential 1978 GMC G35 Performance Transmissions
B & M – Shift Improver Kit For 68-81 TH-350 Transmission (Part No.30262)
from
$70.99
HEAVY DUTY-Firm positive shifts without loss of driver comfort for improved performance in all street vehicles. STREET/STRIP-Positive shifts for high performance street use or for competitive events. Hardest, quickest possible shift.
Product Features:
See More
Product Features:
- Provides Crisp Shifts
- On Any Stock Automatic Transmission
- Eliminates Soft/Sluggish Shift
- Eliminates Shift Overlap
- Eliminate Clutch and Band Wear
B & M – Transpak For 65-87 TH400 Transmission (Part No.20228)
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:
See More
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
Mr. Gasket – Chrome Automatic Transmission Dipstick & Tube – 27" Length (Part No.9764)
from
$34.49
Includes dipstick with chromed steel handle and chromed steel dipstick tube with mounting tab. 27 inch long.
Product Features:
See More
Product Features:
- Fits GM Th350 – Chevy Specific. Modify For Others
- 27 In Length
- Chrome Plated Steel
Lakewood – Trans Mount: Urethane-Chevy (Part No.24350)
from
$99.99
Constructed of durable polyurethane to handle the stress oh high horsepower. Absorbs vibration and lasts longer than rubber Features unique built-in safety lock to keep from separating under high torque loads. Ideal for use on street or strip applications. Complete with grade-8 mounting hardware.
Product Features:
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Product Features:
- Durable Polyurethane
- Absorbs Vibration
- Last Longer Than Rubber
- Built-In Safety Lock
Popular 1978 GMC G35 Performance Transmissions Categories
Most Popular Performance Engine and Transmission Mount for 1978 GMC G35s
Enhance your 1978 GMC G35 with this popular Performance Engine and Transmission Mount we have in stock, for $99.99.
Lakewood – Trans Mount: Urethane-Chevy (Part No.24350)
from
$99.99
Constructed of durable polyurethane to handle the stress oh high horsepower. Absorbs vibration and lasts longer than rubber Features unique built-in safety lock to keep from separating under high torque loads. Ideal for use on street or strip applications. Complete with grade-8 mounting hardware.
Product Features:
See More
Product Features:
- Durable Polyurethane
- Absorbs Vibration
- Last Longer Than Rubber
- Built-In Safety Lock
Best-Selling 1978 GMC G35 Performance Transmission Dipstick Tube
Upgrade your G35 with our best-selling Performance Transmission Dipstick Tube with a 3.5 Starts rating across 5 reviews.
Mr. Gasket – Chrome Automatic Transmission Dipstick & Tube – 27" Length (Part No.9764)
from
$34.49
Includes dipstick with chromed steel handle and chromed steel dipstick tube with mounting tab. 27 inch long.
Product Features:
See More
Product Features:
- Fits GM Th350 – Chevy Specific. Modify For Others
- 27 In Length
- Chrome Plated Steel
Top-Quality Performance Transmission Shift Kits for 1978 GMC G35s
Choose a high-quality OEM or aftermarket Performance Transmission Shift Kit for GMC G35s and enjoy top-notch performance from $70.99.
B & M – Transpak For 65-87 TH400 Transmission (Part No.20228)
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:
See More
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
B & M – Shift Improver Kit For 68-81 TH-350 Transmission (Part No.30262)
from
$70.99
HEAVY DUTY-Firm positive shifts without loss of driver comfort for improved performance in all street vehicles. STREET/STRIP-Positive shifts for high performance street use or for competitive events. Hardest, quickest possible shift.
Product Features:
See More
Product Features:
- Provides Crisp Shifts
- On Any Stock Automatic Transmission
- Eliminates Soft/Sluggish Shift
- Eliminates Shift Overlap
- Eliminate Clutch and Band Wear
FAQs for 1978 GMC G35 Performance Transmissions
What are the best-selling Performance Transmissions for 1978 GMC G35s?
Out of 4 Performance Transmissions that fit 1978 GMC G35s, the following parts are the top sellers:
- Trans Mount: Urethane-Chevy (22901287) – $99.99
- Transpak For 65-87 TH400 Transmission (17130002) – $166.99
- Shift Improver Kit For 68-81 TH-350 Transmission (6280919) – $70.99
What’s the price range for 1978 GMC G35 Performance Transmissions?
The prices of Performance Transmissions for the 1978 GMC G35 range from $34.49 up to $166.99 for the most premium parts.
What is the average price of a Performance Transmission for a 1978 GMC G35?
The average price for Performance Transmissions for the 1978 GMC G35 is $93.12. 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 GMC G35 model years?
What are the cheapest Performance Transmissions for my 1978 GMC G35?
The cheapest 1978 GMC G35 Performance Transmissions we carry are:
- Chrome Automatic Transmission Dipstick & Tube – 27" Length (3443361) – $34.49
- Shift Improver Kit For 68-81 TH-350 Transmission (6280919) – $70.99
- Trans Mount: Urethane-Chevy (22901287) – $99.99
- Transpak For 65-87 TH400 Transmission (17130002) – $166.99
Does Advance Auto Parts sell Performance Transmissions for any other 1978 GMC models?
Yes. We stock Performance Transmissions for 12 other popular 1978 GMC models. Some of the most popular are 1978 Jimmy Performance Transmissions, 1978 Caballero Performance Transmissions, 1978 K25 Performance Transmissions, 1978 K15 Performance Transmissions, and 1978 G25 Performance Transmissions.
What are the top-rated Performance Transmissions that fit the 1978 GMC G35?
The one 1978 GMC G35 Performance Transmission we have in stock is the Chrome Automatic Transmission Dipstick & Tube – 27" Length. It is rated 3.5 stars and costs $34.49.
What types of Performance Transmissions do you sell for my 1978 GMC G35?
As of 6/2/26, these are some of the most in-demand types of Performance Transmissions for a 1978 GMC G35:
Can I get help with 1978 GMC G35 Performance Transmission orders?
Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about GMC Performance Transmissions and more.
What is your return policy for GMC G35 Performance Transmissions?
Advance Auto Parts keeps returns simple. For new GMC G35 Performance Transmissions and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.