1978 Cadillac Eldorado Differentials
Keep Your 1978 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 1978 Cadillac Eldorado looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Differential Oil, Differential Carrier Bearing Set, and Rear Differential 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 and Dorman. For example, Driveworks Differentials start at just $11.99 with an average 4.2 star rating. Dorman offer similar pricing and quality, backed by strong customer feedback. With over 162 reviews and a solid 4.3 star average, you can shop with confidence knowing other Cadillac Eldorado owners approve.
Competitive Prices and Extensive Inventory
The average price for a 1978 Cadillac Eldorado Differential at Advance Auto Parts is around $19.25, with a range that starts at $6.79 and goes up to $49.49. With 8 options in stock from 7 trusted brands, finding the right fit is easy. Popular picks like Dorman – Help Differential Shaft Lock Bolt, 81048, Driveworks Tapered Roller Bearing, S-LM-603012, and National Shaft Repair Sleeve, 99210 start at just $6.79 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 CV Axles and Joints and Drive Shafts and Axles. At Advance Auto Parts, we’re here to help you keep your 1978 Cadillac Eldorado in peak condition, inside and out.
Find Your Specific 1978 Cadillac Eldorado Differentials
Looking for the perfect Differential for your 1978 Cadillac Eldorado? You’re in the right place. Below, you’ll find links to various types of Differentials that fit your vehicle. At Advance Auto Parts, we offer only the highest quality OEM and aftermarket Differentials, ensuring durability and a precise fit for your Cadillac Eldorado. Whether you’re driving a 1978 model or another popular model year like
1994,
1995,
1996,
1997,
1998,
1999,
2000,
2001, and
2002, we’ve got you covered. Purchasing Differentials from Advance Auto Parts is a smart choice, giving you access to trusted brands and parts built to perform. Below, you’ll find links to various types of Differentials that fit your vehicle.
Essential 1978 Cadillac Eldorado Differentials
National – National Shaft Repair Sleeve, 99210 (Part No.99210)
from
$49.49
National has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.
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Driveworks – Driveworks Tapered Roller Bearing, S-HM-804846 (Part No.S-HM-804846)
Driveworks – Driveworks Tapered Roller Bearing, S-HM-803110 (Part No.S-HM-803110)
National – National Tapered Roller Bearing Cone, 28682 (Part No.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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Victor Reinz – Victor Reinz Automatic Transmission Differential Carrier Gasket, 71-14880-00 (Part No.71-14880-00)
from
$13.49
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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Valvoline – Valvoline Multi-Vehicle (ATF) Full Synthetic Automatic Transmission Fluid 1 GA, 904891 (Part No.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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Dorman – Help – Dorman – Help Differential Shaft Lock Bolt, 81048 (Part No.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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Felpro – Felpro Axle Housing Cover Gasket Irregular Shaped 10 Bolt Hole Gasket, RDS 55034 (Part No.RDS 55034)
from
$14.29
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.
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Schaeffler – Schaeffler Bearing, 6207 (Part No.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)
National – National Tapered Roller Bearing Cone, M804049 (Part No.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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Driveworks – Driveworks Taper Bearing Cup, S-LM-501314 (Part No.S-LM-501314)
National – National Bearing Race, LM501314 (Part No.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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National – National Tapered Roller Bearing Cone, HM804846 (Part No.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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National – National Bearing Race, HM803110 (Part No.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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Driveworks – Driveworks Taper Bearing Set, S-A-5 (Part No.S-A-5)
Popular 1978 Cadillac Eldorado Differentials Categories
Most Popular Differential Oil for 1978 Cadillac Eldorados
Enhance your 1978 Cadillac Eldorado with this popular Differential Oil we have in stock, for $35.99.
Valvoline – Valvoline Multi-Vehicle (ATF) Full Synthetic Automatic Transmission Fluid 1 GA, 904891 (Part No.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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Best-Selling 1978 Cadillac Eldorado Differential Carrier Bearing Set
Upgrade your Eldorado with our best-selling Differential Carrier Bearing Set with a 4.5 Starts rating across 70 reviews.
Driveworks – Driveworks Taper Bearing Set, S-A-5 (Part No.S-A-5)
Top-Quality Rear Differential Cover Gaskets for 1978 Cadillac Eldorados
Choose a high-quality OEM or aftermarket Rear Differential Cover Gasket for Cadillac Eldorados and enjoy top-notch performance from $14.29.
Felpro – Felpro Axle Housing Cover Gasket Irregular Shaped 10 Bolt Hole Gasket, RDS 55034 (Part No.RDS 55034)
from
$14.29
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
Our Top Pick for a 1978 Cadillac Eldorado Front Differential Pinion Bearing
Invest in a
durable Front Differential Pinion Bearing for your 1978 Cadillac, knowing you’re getting trusted brands and expert craftsmanship.
Schaeffler – Schaeffler Bearing, 6207 (Part No.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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Our Differential Bearings for 1978 Cadillac Eldorados
Make a smart move for your 1978 Cadillac Eldorado with our Differential Bearing for $7.99.
Driveworks – Driveworks Tapered Roller Bearing, S-LM-603012 (Part No.S-LM-603012)
Top-Rated Differential Brands For Your 1978 Cadillac Eldorado
When it comes to finding the perfect Differential for your 1978 Cadillac Eldorado, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 7 trusted brands. We carry the most popular Differential brands including Driveworks and Dorman, and more, all known for their exceptional customer ratings (average brand rating of 4.2 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 1978 Cadillac Eldorado, providing peace of mind with parts that meet or exceed OEM standards.
Popular Driveworks 1978 Cadillac Eldorado Differentials
If you’re looking for a top-quality Differential for your 1978 Cadillac Eldorado, Advance Auto Parts has exactly what you need with our selection of Driveworks Differentials. We have 1 Driveworks 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. Driveworks Differentials for the 1978 Cadillac Eldorado come highly rated, with over 70 customer reviews and an impressive average rating of 4.2 stars. Choosing a Driveworks Differential from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.
Top-Quality Dorman 1978 Cadillac Eldorado Differentials
For those in search of a high-quality Differential for their 1978 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 1978 Cadillac Eldorado Differentials
What are the best-selling Differentials for 1978 Cadillac Eldorados?
Out of 8 Differentials that fit 1978 Cadillac Eldorados, the following parts are the top sellers:
- Dorman – Help Differential Shaft Lock Bolt, 81048 (5707714) – $6.79
- Driveworks Tapered Roller Bearing, S-LM-603012 (10659441) – $7.99
- National Shaft Repair Sleeve, 99210 (18445114) – $49.49
What’s the price range for 1978 Cadillac Eldorado Differentials?
The prices of Differentials for the 1978 Cadillac Eldorado range from $6.79 up to $49.49 for the most premium parts.
What is the average price of a Differential for a 1978 Cadillac Eldorado?
The average price for Differentials for the 1978 Cadillac Eldorado is $19.25. 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?
What are the cheapest Differentials for my 1978 Cadillac Eldorado?
The cheapest 1978 Cadillac Eldorado Differentials we carry are:
- Dorman – Help Differential Shaft Lock Bolt, 81048 (5707714) – $6.79
- Driveworks Tapered Roller Bearing, S-LM-603012 (10659441) – $7.99
- Driveworks Taper Bearing Set, S-A-5 (5050529) – $11.99
- Victor Reinz Automatic Transmission Differential Carrier Gasket, 71-14880-00 (50303568) – $13.49
- Schaeffler Bearing, 6207 (50205965) – $13.99
Does Advance Auto Parts sell Differentials for any other 1978 Cadillac models?
Yes. We stock Differentials for 3 other popular 1978 Cadillac models. Some of the most popular are 1978 DeVille Differentials, 1978 Seville Differentials, 1978 Fleetwood Differentials, and 1978 Commercial Chassis Differentials.
What types of Differentials do you sell for my 1978 Cadillac Eldorado?
As of 8/2/26, these are some of the most in-demand types of Differentials for a 1978 Cadillac Eldorado:
Can I get help with 1978 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.