1973 Mercury Comet Performance Transmissions

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Keep Your 1973 Mercury Comet in Top Shape with a Quality Performance Transmission

When it comes to maintaining or upgrading your 1973 Mercury Comet, choosing high-quality parts is crucial for ensuring your vehicle stays in top shape, whether you’re tackling a repair or enhancing performance. At Advance Auto Parts, we know how important it is to find the right Performance Transmission for your Comet. We currently carry a top Performance Transmission in stock that is built to last. Whether you’re replacing a damaged Performance Transmission or looking to upgrade, our selection for the 1973 Mercury Comet ensures you’ll find exactly what you need to keep your vehicle looking and performing its best.

Explore Related Parts

And while you’re here, don’t forget to check out related part categories like Performance Fuel Systems and Performance Ignition Products to complete your upgrade or repair project. At Advance Auto Parts, we’re proud to offer the parts and expertise to keep your 1973 Mercury Comet running smoothly and looking great.

Essential 1973 Mercury Comet Performance Transmissions

B & M – B & M Transpak, 50229 (Part No.50229)

B & M Transpak, 50229

from

$155.99
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). The B&M Transpak for 1970-1982 Ford, Lincoln, Mercury C4 automatic transmissions recalibrate’s your C4 transmission for optimum performance to best suit your needs. 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 Dual purpose performance vehicles, Hi-Performance Street/Strip, Off-Road/desert and 4-wheel drive use. Stage 3 – Competition use Only. Not for Street use.
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B & M – B & M Shift Improver Kit, 67-91 C6 Transmission, 40262 (Part No.40262)

B & M Shift Improver Kit, 67-91 C6 Transmission, 40262

from

$82.89
The B&M Shift Improver kits feature two options to recalibrating your 1967-1991 Ford, Lincoln and Mercury C6 automatic transmissions. First is the HEAVY DUTY set-up, giving you firm positive shifts without loss of driver comfort for improved performance in all street vehicles. This is a great option for performance street driving or towing. The second is our STREET/STRIP set-up. Be warned, this will deliver firm positive shifts you will feel, along with easily chirping the tires when shifting somewhat aggressively. This setting is recommend for high performance street/strip use, or for competitive events when you want the hardest, quickest shifts possible from a shift improver kit.
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Most Popular Performance Transmission Shift Kit for 1973 Mercury Comets

Enhance your 1973 Mercury Comet with this popular Performance Transmission Shift Kit we have in stock, for $155.99.

B & M – B & M Transpak, 50229 (Part No.50229)

B & M Transpak, 50229

from

$155.99
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). The B&M Transpak for 1970-1982 Ford, Lincoln, Mercury C4 automatic transmissions recalibrate’s your C4 transmission for optimum performance to best suit your needs. 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 Dual purpose performance vehicles, Hi-Performance Street/Strip, Off-Road/desert and 4-wheel drive use. Stage 3 – Competition use Only. Not for Street use.
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FAQs for 1973 Mercury Comet Performance Transmissions

What’s the price range for 1973 Mercury Comet Performance Transmissions?

We currently have just one Performance Transmissions for the 1973 Mercury Comet in stock: B & M Transpak, 50229 and it costs $155.99.

Does Advance Auto Parts sell Performance Transmissions for other Mercury Comet model years?

Yes, we carry Performance Transmissions for 8 model years of Mercury Comets between 1967 and 1977. The following model years are the most popular for Performance Transmission purchases: 1969, 1968, 1967, 1977, 1975, 1974, 1976, 1971, and 1972.

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

What types of Performance Transmissions do you sell for my 1973 Mercury Comet?

We currently have just 1 Performance Transmission in stock for a 1973 Mercury Comet, and as of 8/2/26, it is a Performance Transmission Shift Kit.

Can I get help with 1973 Mercury Comet Performance Transmission orders?

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

What is your return policy for Mercury Comet Performance Transmissions?

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