1979 AMC AMX Differentials

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Keep Your 1979 AMC AMX in Top Shape with Quality Differentials

Whether you’re repairing or upgrading your Differential, using high-quality parts is key to keeping your 1979 AMC AMX looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Differential Carrier Bearing Set, Differential Pinion Bearing Kits, and Rear Housing Cover Gaskets. 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 Differentials from Trusted Brands

Looking for a reliable Differential? We’ve got you covered with options from brands you know and trust like Driveworks, Motive Gear, and National. For example, Driveworks Differentials start at just $11.99 with an average 4.2 star rating. Motive Gear and National offer similar pricing and quality, backed by strong customer feedback. With over 372 reviews and a solid 4.6 star average, you can shop with confidence knowing other AMC AMX owners approve.

Competitive Prices and Extensive Inventory

The average price for a 1979 AMC AMX Differential at Advance Auto Parts is around $99.20, with a range that starts at $2.99 and goes up to $522.99. With 28 options in stock from 8 trusted brands, finding the right fit is easy. Popular picks like Yukon Gear 3 Qt – Penzoil 80W90 Conventional Gear Oil, 15002, Felpro Axle Housing Cover Gasket Oval Shaped 10 Bolt Hole Gasket, RDS 13089, and Felpro Axle Housing Cover Gasket, RDS 13889 start at just $8.29 and offer a great balance of form and function.

Explore Related Parts

While you’re upgrading or replacing your Differential, don’t forget to check out other key components like Drive Shafts and Axles and Universal Joints. At Advance Auto Parts, we’re here to help you keep your 1979 AMC AMX in peak condition, inside and out.

Essential 1979 AMC AMX Differentials

Motive Gear – Motive Gear Differential Pinion Nut, 379570S (Part No.379570S)

Motive Gear Differential Pinion Nut, 379570S

from

$6.99
All Motive Gear products are engineered for their specific application and manufactured in state of the art facilities. All of our products undergo rigid quality control processes to insure proper fit, performance and longevity. Motive Gear products can be found in the winners circle at NHRA, IHRA, NMRA, NMCA, SODA, SCORE, BITD, Ultra-4 and NASCAR events because we offer unmatched selection and quality demanded by racers and their crew chiefs – the same quality and selection demanded by DIY customers and top mechanics. With four warehouses strategically located across North America, most Motive Gear orders arrive within 2-4 days. Win with Motive Gear.
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Yukon Gear – Yukon Gear Pinion Seal for Model 20 and Model 35, 30079 (Part No.30079)

Yukon Gear Pinion Seal for Model 20 and Model 35, 30079

from

$9.99
Yukon Mighty Seals use the latest design and manufacturing technologies to produce a precision fit that seals tight and lasts for years to come.
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Felpro – Felpro Axle Housing Cover Gasket, RDS 13889 (Part No.RDS 13889)

Felpro Axle Housing Cover Gasket, RDS 13889

from

$12.49
Fel-Pro® gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.
See More

Powertrax – Powertrax Differential Lock Assembly, 9201202900 (Part No.9201202900)

Powertrax Differential Lock Assembly, 9201202900

from

$522.99
For vehicles that are driven daily, the Power Trax No-Slip Traction System is the latest design in quiet traction-adding differential technology. It combines the automatic street-friendly smooth operation of a limited-slip differential with the traction performance of a locking differential. The Power Trax No-Slip locker easily installs in to your differential carrier using basic tools and without affecting your ring and pinion settings. Power Trax Grip-Lok, Lock-Right Lockers and No-Slip Traction Systems automatically provide 100% traction on-demand, under the toughest circumstances. The Power Trax Grip-Pro and Grip-LS performance limited slips offer smooth dependable torque transfer and traction for the best of both worlds.
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Victor Reinz – Victor Reinz Differential Carrier Gasket, 71-14837-00 (Part No.71-14837-00)

Victor Reinz Differential Carrier Gasket, 71-14837-00

from

$13.99
With Victor Reinz gaskets, you can be sure you are getting sealing solutions that deliver OE quality gasket technology and engineering. That is because Victor Reinz is an original equipment supplier and the trusted choice of manufacturers the world over, offering broad coverage for foreign and domestic cars and trucks. In Victor Reinz gasket sets, you get the right combination of components needed for fast, long-lasting repairs.
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Yukon Gear – "Yukon Gear Pinion Depth Shims for GM 8.25""IFS, 8.5"", 12 Bolt Car, Ford 8.8"", Chrysler 8.25"", 55009" (Part No.55009)

"Yukon Gear Pinion Depth Shims for GM 8.25""IFS, 8.5"", 12 Bolt Car, Ford 8.8"", Chrysler 8.25"", 55009"

from

$27.99
Yukon shim kits are precision machined and tailored for each individual application to ensure you have the right shims for every set up.
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Motive Gear – Motive Gear Differential Pinion Shim Kit, 1127 (Part No.1127)

Motive Gear Differential Pinion Shim Kit, 1127

from

$21.29
Motive Gear Differential Pinion Shim Kit, 1127.
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Driveworks – Driveworks Taper Bearing Set, S-A-17 (Part No.S-A-17)

Driveworks Taper Bearing Set, S-A-17

from

$12.49
Value-priced bearing meets all cataloged application requirements.
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Driveworks – Driveworks Taper Bearing Set, S-A-5 (Part No.S-A-5)

Driveworks Taper Bearing Set, S-A-5

from

$11.99
Value-priced bearing meets all cataloged application requirements.
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Motive Gear – Motive Gear Differential Master Bearing Kit – Koyo, R35JRMK (Part No.R35JRMK)

Motive Gear Differential Master Bearing Kit - Koyo, R35JRMK

from

$151.99
Motive Gear Differential Bearing Kits Include Front & Rear Pinion Bearing, Pinion Seal, Carrier Bearings, Pilot Bearing Where Applicable, Gear Marking Compound, Crush Sleeve, Pinion Nut, Brush, Thread Locking Compound And Cover Gasket Or Rtv
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Yukon Gear – Yukon Gear Master Overhaul Kit for Model 35 Differential, 14109 (Part No.14109)

Yukon Gear Master Overhaul Kit for Model 35 Differential, 14109

from

$339.99
Yukon Master Overhaul Kits give you all the high-quality parts you need to start and finish every differential job. Yukon offers more tailor-made kits than any other manufacturer in the industry to meet your specific installation needs. This kit uses Timken bearings and races along with high quality seals and small parts. Yukon Master Overhaul Kits are the most comprehensive and complete kits on the market because Yukon does extensive research to ensure that every kit has everything you need for your application.
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Motive Gear – Motive Gear Differential Gear Install Kit, AM20IK (Part No.AM20IK)

Motive Gear Differential Gear Install Kit, AM20IK

from

$52.79
All Motive Gear products are engineered for their specific application and manufactured in state of the art facilities. All of our products undergo rigid quality control processes to insure proper fit, performance and longevity. Motive Gear products can be found in the winners circle at NHRA, IHRA, NMRA, NMCA, SODA, SCORE, BITD, Ultra-4 and NASCAR events because we offer unmatched selection and quality demanded by racers and their crew chiefs – the same quality and selection demanded by DIY customers and top mechanics. With four warehouses strategically located across North America, most Motive Gear orders arrive within 2-4 days. Win with Motive Gear!
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Motive Gear – Motive Gear Differential Gear Install Kit, D35IKJ (Part No.D35IKJ)

Motive Gear Differential Gear Install Kit, D35IKJ

from

$81.99
Motive Gear Differential Gear Install Kit, D35IKJ.
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Motive Gear – Motive Gear Differential Carrier Shim Kit, 1130 (Part No.1130)

Motive Gear Differential Carrier Shim Kit, 1130

from

$18.99
Motive Gear offers some of the toughest drive train components on the market today. If you are looking for the largest line of performance ring and pinion gear options available with gear sets in a wide range of ratios for nearly every application, both on and off-road, check out Motive Gear. Motive Gear products can be found in the winner’s circle at racing events worldwide. The superior quality of Motive Gear components is the result of years of racing development, outstanding design and state-of-the-art manufacturing methods. Extensive testing is performed on all products by our in-house engineers.
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Yukon Gear – Yukon Gear Super Carrier Shim Kit for Model 35, 55063 (Part No.55063)

Yukon Gear Super Carrier Shim Kit for Model 35, 55063

from

$54.99
Yukon shim kits are precision machined and tailored for each individual application to ensure you have the right shims for every set up.
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Yukon Gear – Yukon Gear Pinion Install Kit for Model 20 Differential, 13082 (Part No.13082)

Yukon Gear Pinion Install Kit for Model 20 Differential, 13082

from

$175.99
Yukon Pinion Installation Kits are a terrific solution for gear installation on lower mileage vehicles where the carrier bearings and races can be reused. This kit features Timken bearings and races along with high-quality seals and small parts. Yukon does extensive research for each application to make sure your kit will arrive with all the correct parts you need to install your gear set.
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Yukon Gear – Yukon Gear Pinion Install Kit for Model 35 Differential, 13083 (Part No.13083)

Yukon Gear Pinion Install Kit for Model 35 Differential, 13083

from

$215.99
Yukon Pinion Installation Kits are a terrific solution for gear installation on lower mileage vehicles where the carrier bearings and races can be reused. This kit features Timken bearings and races along with high-quality seals and small parts. Yukon does extensive research for each application to make sure your kit will arrive with all the correct parts you need to install your gear set.
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Yukon Gear – Yukon Gear High Performance Ring & Pinion Gear Set For Model 35 In A 3.73 Ratio, 24180 (Part No.24180)

Yukon Gear High Performance Ring & Pinion Gear Set For Model 35 In A 3.73 Ratio, 24180

from

$379.99
Yukon Ring & Pinion sets give you the confidence of knowing you’re running gears designed for the harshest of conditions. Whether it’s on the street, off-road, or at the track; Yukon ring & pinion sets deliver unrivaled performance & quality. Yukon uses the latest designs and manufacturing technologies to provide a quiet running gear that is strong and easy to set up. All Yukon ring & pinion sets come standard with a one-year warranty.
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Motive Gear – Motive Gear Differential Ring and Pinion, D35-488 (Part No.D35-488)

Motive Gear Differential Ring and Pinion, D35-488

from

$187.99
Motive Gear Differential Ring and Pinion, D35-488.
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Yukon Gear – Yukon Gear 3 Qt – Penzoil 80W90 Conventional Gear Oil, 15002 (Part No.15002)

Yukon Gear 3 Qt - Penzoil 80W90 Conventional Gear Oil, 15002

from

$44.99
Union 76 gear oil is a conventional non-synthetic 80W90 formulation designed for all types of differentials.
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Valvoline – Valvoline Multi-Vehicle (ATF) Full Synthetic Automatic Transmission Fluid 1 GA, 904891 (Part No.904891)

Valvoline Multi-Vehicle (ATF) Full Synthetic Automatic Transmission Fluid 1 GA, 904891

from

$35.99
Choosing an automatic transmission fluid just got easier. Valvoline Full Synthetic MaxLife Multi-Vehicle ATF, the #1 ATF product, is suitable for use in 95% of ATF vehicles in operation with US registered light duty applications. And now, it€™s also recommended for most belt and chain-driven continuously variable transmissions (CVT). Featuring advanced additives to prevent the major causes of transmission breakdown, it€™s designed to help prevent leaks, reduce wear and tear, and maximize performance €“ all for much longer than conventional fluids. It has improved thermal stability for longer fluid life, better viscosity stability for consistent transmission operation, and frictional enhancements for smooth gear engagements. Whether your vehicle has a CVT or traditional automatic, Valvoline MaxLife Multi-Vehicle ATF is suitable for a broad range of transmissions including Ford, GM, Toyota, Honda, Nissan, Hyundai, Subaru, BMW, Mercedes, Volvo, VW and Audi vehicles. It€™s specifically recommended for use in the following applications: GM DEXRON-II, DEXRON-III, DEXRON-VI, and DEX-CVT; Ford MERCON LV; Toyota/Lexus Type T, T-II, T-IV, WS, CVTF FE, and CVTF TC. For the many miles ahead, trust your transmission with Valvoline, the #1 automatic transmission fluid brand.
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Motive Gear – Motive Gear Differential Crush Sleeve, 3507575 (Part No.3507575)

Motive Gear Differential Crush Sleeve, 3507575

from

$2.99
Motive Gear Differential Crush Sleeve, 3507575.
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Yukon Gear – Yukon Gear Crush Sleeve, 33085 (Part No.33085)

Yukon Gear Crush Sleeve, 33085

from

$9.99
Yukon Gear & Axle manufactures a full line of top quality small parts to complete any job including ring gear bolts, crush sleeves, pinion nuts and washers, axle studs, thrust washers and much, much more. For all your differential small parts needs, look no further than Yukon.
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Powertrax – Powertrax Differential Lock Assembly, 1710-LR (Part No.1710-LR)

Powertrax Differential Lock Assembly, 1710-LR

from

$368.99
For vehicles that are driven daily, the Power Trax No-Slip Traction System is the latest design in quiet traction-adding differential technology. It combines the automatic street-friendly smooth operation of a limited-slip differential with the traction performance of a locking differential. The Power Trax No-Slip locker easily installs in to your differential carrier using basic tools and without affecting your ring and pinion settings. Power Trax Grip-Lok, Lock-Right Lockers and No-Slip Traction Systems automatically provide 100% traction on-demand, under the toughest circumstances. The Power Trax Grip-Pro and Grip-LS performance limited slips offer smooth dependable torque transfer and traction for the best of both worlds.
See More

Driveworks – Driveworks Tapered Roller Bearing, S-M-802048 (Part No.S-M-802048)

Driveworks Tapered Roller Bearing, S-M-802048

from

$17.99
Driveworks Tapered Roller Bearing, S-M-802048.
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National – National Tapered Roller Bearing Cone, HM88648 (Part No.HM88648)

National Tapered Roller Bearing Cone, HM88648

from

$27.49
Manufactured with premium-grade steel, National taper bearing cones feature crowned raceways and rollers to ensure even load distribution.
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Driveworks – Driveworks Taper Bearing Cup, S-LM-501314 (Part No.S-LM-501314)

Driveworks Taper Bearing Cup, S-LM-501314

from

$7.99
Value-priced bearing meets all cataloged application requirements.
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National – National Bearing Race, LM501314 (Part No.LM501314)

National Bearing Race, LM501314

from

$11.99
Manufactured with premium-grade steel, National taper bearing cups feature crowned raceways to ensure even load distribution.
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Most Popular Differential Carrier Bearing Set for 1979 AMC AMXes

Enhance your 1979 AMC AMX with this popular Differential Carrier Bearing Set we have in stock, for $11.99.

Driveworks – Driveworks Taper Bearing Set, S-A-5 (Part No.S-A-5)

Driveworks Taper Bearing Set, S-A-5

from

$11.99
Value-priced bearing meets all cataloged application requirements.
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Best-Selling 1979 AMC AMX Differential Pinion Bearing Kit

Upgrade your AMX with our best-selling Differential Pinion Bearing Kit with a 4.5 Starts rating across 38 reviews.

Driveworks – Driveworks Taper Bearing Set, S-A-6 (Part No.S-A-6)

Driveworks Taper Bearing Set, S-A-6

from

$11.99
Value-priced bearing meets all cataloged application requirements.
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Top-Quality Rear Housing Cover Gaskets for 1979 AMC AMXes

Choose a high-quality OEM or aftermarket Rear Housing Cover Gasket for AMC AMXes and enjoy top-notch performance from $8.29.

Felpro – Felpro Axle Housing Cover Gasket Oval Shaped 10 Bolt Hole Gasket, RDS 13089 (Part No.RDS 13089)

Felpro Axle Housing Cover Gasket Oval Shaped 10 Bolt Hole Gasket, RDS 13089

from

$8.29
Fel-Pro® gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.
See More

Felpro – Felpro Axle Housing Cover Gasket, RDS 13889 (Part No.RDS 13889)

Felpro Axle Housing Cover Gasket, RDS 13889

from

$12.49
Fel-Pro® gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.
See More

Top Picks for 1979 AMC AMX Differential Oil

Invest in one of our 3 durable Differential Oil for your 1979 AMC, knowing you’re getting trusted brands and expert craftsmanship.

Yukon Gear – Yukon Gear 3 Qt – Penzoil 80W90 Conventional Gear Oil, 15002 (Part No.15002)

Yukon Gear 3 Qt - Penzoil 80W90 Conventional Gear Oil, 15002

from

$44.99
Union 76 gear oil is a conventional non-synthetic 80W90 formulation designed for all types of differentials.
See More

Yukon Gear – "Yukon Gear Redline Synthetic ""Shock Proof"" Oil – 4 Quarts, 15004" (Part No.15004)

"Yukon Gear Redline Synthetic ""Shock Proof"" Oil - 4 Quarts, 15004"

from

$137.99
Redline Heavy Shockproof Gear Oil is formulated to provide lasting protection.
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Valvoline – Valvoline Multi-Vehicle (ATF) Full Synthetic Automatic Transmission Fluid 1 GA, 904891 (Part No.904891)

Valvoline Multi-Vehicle (ATF) Full Synthetic Automatic Transmission Fluid 1 GA, 904891

from

$35.99
Choosing an automatic transmission fluid just got easier. Valvoline Full Synthetic MaxLife Multi-Vehicle ATF, the #1 ATF product, is suitable for use in 95% of ATF vehicles in operation with US registered light duty applications. And now, it€™s also recommended for most belt and chain-driven continuously variable transmissions (CVT). Featuring advanced additives to prevent the major causes of transmission breakdown, it€™s designed to help prevent leaks, reduce wear and tear, and maximize performance €“ all for much longer than conventional fluids. It has improved thermal stability for longer fluid life, better viscosity stability for consistent transmission operation, and frictional enhancements for smooth gear engagements. Whether your vehicle has a CVT or traditional automatic, Valvoline MaxLife Multi-Vehicle ATF is suitable for a broad range of transmissions including Ford, GM, Toyota, Honda, Nissan, Hyundai, Subaru, BMW, Mercedes, Volvo, VW and Audi vehicles. It€™s specifically recommended for use in the following applications: GM DEXRON-II, DEXRON-III, DEXRON-VI, and DEX-CVT; Ford MERCON LV; Toyota/Lexus Type T, T-II, T-IV, WS, CVTF FE, and CVTF TC. For the many miles ahead, trust your transmission with Valvoline, the #1 automatic transmission fluid brand.
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Our Differential Pinion Seals for 1979 AMC AMXes

Make a smart move for your 1979 AMC AMX with our Differential Pinion Seal for $17.49.

Motive Gear – Motive Gear Differential Pinion Seal, 470331N (Part No.470331N)

Motive Gear Differential Pinion Seal, 470331N

from

$17.49
Motive Gear offers some of the toughest drive train components on the market today. If you are looking for the largest line of performance ring and pinion gear options available with gear sets in a wide range of ratios for nearly every application, both on and off-road, check out Motive Gear. Motive Gear products can be found in the winner’s circle at racing events worldwide. The superior quality of Motive Gear components is the result of years of racing development, outstanding design and state-of-the-art manufacturing methods. Extensive testing is performed on all products by our in-house engineers.
See More

Top-Rated Differential Brands For Your 1979 AMC AMX

When it comes to finding the perfect Differential for your 1979 AMC AMX, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 8 trusted brands. We carry the most popular Differential brands including National, Driveworks, and Motive Gear, and more, all known for their exceptional customer ratings (average brand rating of 4.3 stars) and competitive prices, as low as $2.99. Purchasing a Differential from us here at Advance Auto Parts is a smart move for both you and your 1979 AMC AMX, providing peace of mind with parts that meet or exceed OEM standards.

Popular National 1979 AMC AMX Differentials

If you’re looking for a top-quality Differential for your 1979 AMC AMX, Advance Auto Parts has exactly what you need with our selection of National Differentials. We have 1 National Differentials in stock for this fitment, all known for their durability and precision fit. With prices starting at just $11.99, you’ll find the perfect Differential for your needs and budget. National Differentials for the 1979 AMC AMX come highly rated, with over 2 customer reviews and an impressive average rating of 4.3 stars. Choosing a National Differential from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.
National Bearing Race, LM501314
from $11.99
(2)
National Bearing Race, LM501314
“good quality & price”

Top-Quality Driveworks 1979 AMC AMX Differentials

For those in search of a high-quality Differential for their 1979 AMC AMX, Advance Auto Parts offers a great selection of Driveworks Differentials. With 2 Driveworks Differentials in stock, you can trust you’re getting top-tier parts designed for durability and a perfect fit. Prices for these Differentials start at just $11.99, giving you a range of options to suit your budget. Backed by over 108 customer ratings and an average rating of 4.2 stars, Driveworks Differentials provide both reliability and excellent performance. Choosing a Driveworks Differential from Advance Auto Parts is a smart investment in your vehicle’s performance and longevity.
Driveworks Taper Bearing Set, S-A-5
from $11.99
(70)
Driveworks Taper Bearing Set, S-A-5
“Great”
Driveworks Taper Bearing Set, S-A-6
from $11.99
(38)
Driveworks Taper Bearing Set, S-A-6
“HELPFUL ASSOCIATE”

FAQs for 1979 AMC AMX Differentials

What are the best-selling Differentials for 1979 AMC AMXes?

Out of 28 Differentials that fit 1979 AMC AMXes, the following parts are the top sellers:

What’s the price range for 1979 AMC AMX Differentials?

The prices of Differentials for the 1979 AMC AMX range from $2.99 up to $522.99 for the most premium parts.

What is the average price of a Differential for a 1979 AMC AMX?

The average price for Differentials for the 1979 AMC AMX is $99.20. Keep in mind the variety of part types within our Differential category, where you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Differentials for other AMC AMX model years?

Yes, we carry Differentials for 4 model years of AMC AMXes between 1968 and 1980. The following model years are the most popular for Differential purchases: 1980, 1978, 1970, 1969, and 1968.

What are the cheapest Differentials for my 1979 AMC AMX?

The cheapest 1979 AMC AMX Differentials we carry are:

Does Advance Auto Parts sell Differentials for any other 1979 AMC models?

Yes. We stock Differentials for 2 other popular 1979 AMC models. Some of the most popular are 1979 Spirit Differentials, 1979 Pacer Differentials, and 1979 Concord Differentials.

What types of Differentials do you sell for my 1979 AMC AMX?

As of 8/2/26, these are some of the most in-demand types of Differentials for a 1979 AMC AMX:

Can I get help with 1979 AMC AMX Differential orders?

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

What is your return policy for AMC AMX Differentials?

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