1973 GMC P35/P3500 Van Performance Transmissions

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Keep Your 1973 GMC P35/P3500 Van 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 1973 GMC P35/P3500 Van looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Performance Transmission Shift Kits and Performance Transmission Dipstick Tubes. 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 1973 GMC P35/P3500 Van Performance Transmission at Advance Auto Parts is around $139.86, with a range that starts at $101.99 and goes up to $172.99. With 2 options in stock from 2 trusted brands, finding the right fit is easy. Popular picks like Mr. Gasket A/Tdipstick, 9703G and B & M Transpak For 65-87 Th400 Transmission, 20228 start at just $101.99 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 1973 GMC P35/P3500 Van in peak condition, inside and out.

Essential 1973 GMC P35/P3500 Van Performance Transmissions

Mr. Gasket – Mr. Gasket A/Tdipstick, 9703G (Part No.9703G)

Mr. Gasket A/Tdipstick, 9703G

from

$101.99
Billet aluminum handle with flexible braded steel tube mounts to the firewall. 29-3/4 inch long.
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B & M – B & M Transpak For 65-87 Th400 Transmission, 20228 (Part No.20228)

B & M Transpak For 65-87 Th400 Transmission, 20228

from

$172.99
The B&M Transpak is the next step up from the B&M Shift Improver kit. It has all the features in the Shift Improver kit, plus it provides additional driver manual control (GM TH-400, 350, Ford C-6 and Chrysler Torqueflite only). B&M Transpak kit for 1965-1987 GM TH400/375 automatic transmissions. Most stock automatic transmissions won’t downshift into low gear above 15 mph, and automatically upshift at a predetermined speed no matter what gear you’re in. With the Transpak, you can downshift at any speed, and you can hold the transmission in first gear to any speed that you want! This is an asset when you’ve got a modified engine, and you want additional RPMs, or you’re towing a trailer or driving heavy loads downhill. Stage 1. Heavy Duty is for street rods, normal passenger vehicles or other heavy duty use. Firmer shift feel but not harsh. Improves transmission performance and life dramatically without loss of comfort and offers normal automatic operation when in Drive. Stage 2 is for Hi-Performance street use. Essentially the same as Heavy Duty mode except shifts are much quicker. Retains full automatic features and standard shift points with selector in Drive.
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Most Popular Performance Transmission Shift Kit for 1973 GMC P35/P3500 Vans

Enhance your 1973 GMC P35/P3500 Van with this popular Performance Transmission Shift Kit we have in stock, for $172.99.

B & M – B & M Transpak For 65-87 Th400 Transmission, 20228 (Part No.20228)

B & M Transpak For 65-87 Th400 Transmission, 20228

from

$172.99
The B&M Transpak is the next step up from the B&M Shift Improver kit. It has all the features in the Shift Improver kit, plus it provides additional driver manual control (GM TH-400, 350, Ford C-6 and Chrysler Torqueflite only). B&M Transpak kit for 1965-1987 GM TH400/375 automatic transmissions. Most stock automatic transmissions won’t downshift into low gear above 15 mph, and automatically upshift at a predetermined speed no matter what gear you’re in. With the Transpak, you can downshift at any speed, and you can hold the transmission in first gear to any speed that you want! This is an asset when you’ve got a modified engine, and you want additional RPMs, or you’re towing a trailer or driving heavy loads downhill. Stage 1. Heavy Duty is for street rods, normal passenger vehicles or other heavy duty use. Firmer shift feel but not harsh. Improves transmission performance and life dramatically without loss of comfort and offers normal automatic operation when in Drive. Stage 2 is for Hi-Performance street use. Essentially the same as Heavy Duty mode except shifts are much quicker. Retains full automatic features and standard shift points with selector in Drive.
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Best-Selling 1973 GMC P35/P3500 Van Performance Transmission Dipstick Tube

Upgrade your P35/P3500 Van with our best-selling Performance Transmission Dipstick Tube.

Mr. Gasket – Mr. Gasket A/Tdipstick, 9703G (Part No.9703G)

Mr. Gasket A/Tdipstick, 9703G

from

$101.99
Billet aluminum handle with flexible braded steel tube mounts to the firewall. 29-3/4 inch long.
See More

FAQs for 1973 GMC P35/P3500 Van Performance Transmissions

What are the best-selling Performance Transmissions for 1973 GMC P35/P3500 Vans?

Out of 2 Performance Transmissions that fit 1973 GMC P35/P3500 Vans, the following parts are the top sellers:

What’s the price range for 1973 GMC P35/P3500 Van Performance Transmissions?

The prices of Performance Transmissions for the 1973 GMC P35/P3500 Van range from $101.99 up to $172.99 for the most premium parts.

What is the average price of a Performance Transmission for a 1973 GMC P35/P3500 Van?

The average price for Performance Transmissions for the 1973 GMC P35/P3500 Van is $139.86. 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 P35/P3500 Van model years?

Yes, we carry Performance Transmissions for 4 model years of GMC P35/P3500 Vans between 1969 and 1974. The following model years are the most popular for Performance Transmission purchases: 1974, 1972, 1971, 1970, and 1969.

What are the cheapest Performance Transmissions for my 1973 GMC P35/P3500 Van?

The cheapest 1973 GMC P35/P3500 Van Performance Transmissions we carry are:

Does Advance Auto Parts sell Performance Transmissions for any other 1973 GMC models?

What types of Performance Transmissions do you sell for my 1973 GMC P35/P3500 Van?

As of 8/2/26, these are some of the most in-demand types of Performance Transmissions for a 1973 GMC P35/P3500 Van:

Can I get help with 1973 GMC P35/P3500 Van 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 P35/P3500 Van Performance Transmissions?

Advance Auto Parts keeps returns simple. For new GMC P35/P3500 Van Performance Transmissions and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.