1979 Jeep J20 Performance Transmissions

Keep Your 1979 Jeep J20 in Top Shape with a Quality Performance Transmission

When it comes to maintaining or upgrading your 1979 Jeep J20, 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 J20. 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 1979 Jeep J20 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 Distributors and Performance Oil Filters to complete your upgrade or repair project. At Advance Auto Parts, we’re proud to offer the parts and expertise to keep your 1979 Jeep J20 running smoothly and looking great.

Essential 1979 Jeep J20 Performance Transmissions

Rugged Ridge – Engine Mount Kit; Aluminum (Part No.18390.20)

Engine Mount Kit; Aluminum

from

$174.99
Rugged Ridge Solid Motor mounts are built from 6061-T6 Aluminum with a tensile strength of 42,000 psi. Built to replace your wimpy OE rubber engine mounts to eliminate weight transfer on the trail torque loss and binding that result in excess engine movement.

Product Features:
  • Aluminum
  • Pair
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Energy Suspension – Motor Mount (Part No.2.1102G)

Motor Mount

from

$43.99
A true performance application component for cars, trucks, hot rods and racing/competition vehicles – yet designed to be also used for street vehicles. Soft-running enough to absorb vibrations for street use yet rugged for racing use. When required- a torque resistant safety interlock design is used that is comparable in strength to those too hard-running metal mounts. Replaces the original, short lived and typically too-soft rubber mounts and outdates those hard-running metal motor mounts. The popular early style mounts for General Motors vehicles are available in either zinc or chrome metal finishes. Made of Hyper-Flex performance polyurethane. Resistant to under vehicle fluids such as: oils, coolants, road contaminants, etc.

Product Features:
  • Gains Both Performance and Longevity
  • Will Handle Any and All Torque
  • Out Lasts Rubber
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Lakewood – Trans Mount: Urethane-Chevy (Part No.24350)

Trans Mount: Urethane-Chevy

from

$97.99
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:
  • Durable Polyurethane
  • Absorbs Vibration
  • Last Longer Than Rubber
  • Built-In Safety Lock
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Energy Suspension – Motor Mount (Part No.2.1102R)

Motor Mount

from

$43.99
A true performance application component for cars, trucks, hot rods and racing/competition vehicles – yet designed to be also used for street vehicles. Soft-running enough to absorb vibrations for street use yet rugged for racing use. When required- a torque resistant safety interlock design is used that is comparable in strength to those too hard-running metal mounts. Replaces the original, short lived and typically too-soft rubber mounts and outdates those hard-running metal motor mounts. The popular early style mounts for General Motors vehicles are available in either zinc or chrome metal finishes. Made of Hyper-Flex performance polyurethane. Resistant to under vehicle fluids such as: oils, coolants, road contaminants, etc.

Product Features:
  • Gains Both Performance and Longevity
  • Will Handle Any and All Torque
  • Out Lasts Rubber
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Most Popular Performance Engine and Transmission Mount for 1979 Jeep J20s

Enhance your 1979 Jeep J20 with this popular Performance Engine and Transmission Mount we have in stock, for $97.99.

Lakewood – Trans Mount: Urethane-Chevy (Part No.24350)

Trans Mount: Urethane-Chevy

from

$97.99
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:
  • Durable Polyurethane
  • Absorbs Vibration
  • Last Longer Than Rubber
  • Built-In Safety Lock
See More

FAQs for 1979 Jeep J20 Performance Transmissions

What’s the price range for 1979 Jeep J20 Performance Transmissions?

We currently have just one Performance Transmissions for the 1979 Jeep J20 in stock: Trans Mount: Urethane-Chevy and it costs $97.99.

Does Advance Auto Parts sell Performance Transmissions for other Jeep J20 model years?

Yes, we carry Performance Transmissions for 4 model years of Jeep J20s between 1974 and 1978. The following model years are the most popular for Performance Transmission purchases: 1974, 1975, 1976, 1978, and 1977.

Does Advance Auto Parts sell Performance Transmissions for any other 1979 Jeep models?

Yes. We stock Performance Transmissions for 5 other popular 1979 Jeep models. Some of the most popular are 1979 Cherokee Performance Transmissions, 1979 J10 Performance Transmissions, 1979 CJ7 Performance Transmissions, 1979 CJ5 Performance Transmissions, and 1979 Wagoneer Performance Transmissions.

What types of Performance Transmissions do you sell for my 1979 Jeep J20?

We currently have just 1 Performance Transmission in stock for a 1979 Jeep J20, and as of 11/2/25, it is a Performance Engine and Transmission Mount.

Can I get help with 1979 Jeep J20 Performance Transmission orders?

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

What is your return policy for Jeep J20 Performance Transmissions?

Advance Auto Parts keeps returns simple. For new Jeep J20 Performance Transmissions and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.