1979 Cadillac Eldorado Differentials

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Keep Your 1979 Cadillac Eldorado in Top Shape with Quality Differentials

Whether you’re repairing or upgrading your Differential, using high-quality parts is key to keeping your 1979 Cadillac Eldorado looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Differential Pinion Shaft Lock Bolts, Differential Oil, and Front Differential Pinion Bearings. 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 National and Dorman. For example, National Differentials start at just $11.99 with an average 4.3 star rating. Dorman offer similar pricing and quality, backed by strong customer feedback. With over 26 reviews and a solid 4.5 star average, you can shop with confidence knowing other Cadillac Eldorado owners approve.

Competitive Prices and Extensive Inventory

The average price for a 1979 Cadillac Eldorado Differential at Advance Auto Parts is around $19.37, with a range that starts at $6.79 and goes up to $35.99. With 6 options in stock from 4 trusted brands, finding the right fit is easy. Popular picks like Driveworks Tapered Roller Bearing, S-M-802048, National Tapered Roller Bearing Cone, M804049, and Driveworks Tapered Roller Bearing, S-LM-603012 start at just $7.99 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 Transfer Cases. At Advance Auto Parts, we’re here to help you keep your 1979 Cadillac Eldorado in peak condition, inside and out.

Essential 1979 Cadillac Eldorado Differentials

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, HM803110 (Part No.HM803110)

National Bearing Race, HM803110

from

$20.79
Manufactured with premium-grade steel, National taper bearing cups feature crowned raceways to ensure even load distribution.
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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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Schaeffler – Schaeffler Bearing, 6207 (Part No.6207)

Schaeffler Bearing, 6207

from

$13.99
We develop and produce high-quality roller bearings, spherical bearings, and plain bearings worldwide for a wide range of applications.
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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, M804049 (Part No.M804049)

National Tapered Roller Bearing Cone, M804049

from

$35.49
Manufactured with premium-grade steel, National taper bearing cones feature crowned raceways and rollers to ensure even load distribution.
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National – National Tapered Roller Bearing Cone, HM804846 (Part No.HM804846)

National Tapered Roller Bearing Cone, HM804846

from

$46.49
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 Tapered Roller Bearing, S-LM-603012 (Part No.S-LM-603012)

Driveworks Tapered Roller Bearing, S-LM-603012

from

$7.99
Driveworks Tapered Roller Bearing, S-LM-603012.
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Driveworks – Driveworks Wheel Bearing, S-RW-509-FR (Part No.S-RW-509-FR)

Driveworks Wheel Bearing, S-RW-509-FR

from

$25.99
Driveworks Wheel Bearing, S-RW-509-FR.
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National – National Tapered Roller Bearing Cone, 28682 (Part No.28682)

National Tapered Roller Bearing Cone, 28682

from

$32.49
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 Tapered Roller Bearing, S-HM-804846 (Part No.S-HM-804846)

Driveworks Tapered Roller Bearing, S-HM-804846

from

$41.99
Driveworks Tapered Roller Bearing, S-HM-804846.
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Driveworks – Driveworks Tapered Roller Bearing, S-HM-803110 (Part No.S-HM-803110)

Driveworks Tapered Roller Bearing, S-HM-803110

from

$13.49
Driveworks Tapered Roller Bearing, S-HM-803110.
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Dorman – Help – Dorman – Help Differential Shaft Lock Bolt, 81048 (Part No.81048)

Dorman - Help Differential Shaft Lock Bolt, 81048

from

$6.79
This differential pinion shaft lock bolt is designed to match the fit and function of the original part on specified vehicles. Made of quality materials, it is engineered for reliable performance.
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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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Most Popular Differential Pinion Shaft Lock Bolt for 1979 Cadillac Eldorados

Enhance your 1979 Cadillac Eldorado with this popular Differential Pinion Shaft Lock Bolt we have in stock, for $6.79.

Dorman – Help – Dorman – Help Differential Shaft Lock Bolt, 81048 (Part No.81048)

Dorman - Help Differential Shaft Lock Bolt, 81048

from

$6.79
This differential pinion shaft lock bolt is designed to match the fit and function of the original part on specified vehicles. Made of quality materials, it is engineered for reliable performance.
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Best-Selling 1979 Cadillac Eldorado Differential Oil

Upgrade your Eldorado with our best-selling Differential Oil.

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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Top-Quality Front Differential Pinion Bearings for 1979 Cadillac Eldorados

Choose a high-quality OEM or aftermarket Front Differential Pinion Bearing for Cadillac Eldorados and enjoy top-notch performance from $11.99.

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.
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.
See More

National – National Tapered Roller Bearing Cone, M804049 (Part No.M804049)

National Tapered Roller Bearing Cone, M804049

from

$35.49
Manufactured with premium-grade steel, National taper bearing cones feature crowned raceways and rollers to ensure even load distribution.
See More

Our Top Pick for a 1979 Cadillac Eldorado Differential Bearing

Invest in a durable Differential Bearing for your 1979 Cadillac, knowing you’re getting trusted brands and expert craftsmanship.

Driveworks – Driveworks Tapered Roller Bearing, S-LM-603012 (Part No.S-LM-603012)

Driveworks Tapered Roller Bearing, S-LM-603012

from

$7.99
Driveworks Tapered Roller Bearing, S-LM-603012.
See More

Top-Rated Differential Brands For Your 1979 Cadillac Eldorado

When it comes to finding the perfect Differential for your 1979 Cadillac Eldorado, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 4 trusted brands. We carry the most popular Differential brands including National and Dorman, and more, all known for their exceptional customer ratings (average brand rating of 4.3 stars) and competitive prices, as low as $6.79. Purchasing a Differential from us here at Advance Auto Parts is a smart move for both you and your 1979 Cadillac Eldorado, providing peace of mind with parts that meet or exceed OEM standards.

Popular National 1979 Cadillac Eldorado Differentials

If you’re looking for a top-quality Differential for your 1979 Cadillac Eldorado, 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 Cadillac Eldorado 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 Dorman 1979 Cadillac Eldorado Differentials

For those in search of a high-quality Differential for their 1979 Cadillac Eldorado, Advance Auto Parts offers a great selection of Dorman Differentials. With 1 Dorman 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 $6.79, giving you a range of options to suit your budget. Backed by over 11 customer ratings and an average rating of 4.2 stars, Dorman Differentials provide both reliability and excellent performance. Choosing a Dorman Differential from Advance Auto Parts is a smart investment in your vehicle’s performance and longevity.

FAQs for 1979 Cadillac Eldorado Differentials

What are the best-selling Differentials for 1979 Cadillac Eldorados?

Out of 6 Differentials that fit 1979 Cadillac Eldorados, the following parts are the top sellers:

What’s the price range for 1979 Cadillac Eldorado Differentials?

The prices of Differentials for the 1979 Cadillac Eldorado range from $6.79 up to $35.99 for the most premium parts.

What is the average price of a Differential for a 1979 Cadillac Eldorado?

The average price for Differentials for the 1979 Cadillac Eldorado is $19.37. 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 Cadillac Eldorado model years?

Yes, we carry Differentials for 48 model years of Cadillac Eldorados between 1953 and 2002. The following model years are the most popular for Differential purchases: 2002, 2001, 2000, 1999, 1998, 1997, 1996, 1995, and 1994.

What are the cheapest Differentials for my 1979 Cadillac Eldorado?

The cheapest 1979 Cadillac Eldorado Differentials we carry are:

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

Yes. We stock Differentials for 3 other popular 1979 Cadillac models. Some of the most popular are 1979 DeVille Differentials, 1979 Seville Differentials, 1979 Fleetwood Differentials, and 1979 Commercial Chassis Differentials.

What are the top-rated Differentials that fit the 1979 Cadillac Eldorado?

The one 1979 Cadillac Eldorado Differential we have in stock is the Dorman – Help Differential Shaft Lock Bolt, 81048. It is rated 4 stars and costs $6.79.

What types of Differentials do you sell for my 1979 Cadillac Eldorado?

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

Can I get help with 1979 Cadillac Eldorado Differential orders?

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

What is your return policy for Cadillac Eldorado Differentials?

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