1966 Cadillac Eldorado Differentials
Keep Your 1966 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 1966 Cadillac Eldorado looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Rear Differential Pinion Bearings, Front Differential Pinion Bearings, and Pinion Shaft 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. For example, National Differentials start at just $16.99 with an average 4.3 star rating. With over 39 reviews and a solid 4 star average, you can shop with confidence knowing other Cadillac Eldorado owners approve.
Competitive Prices and Extensive Inventory
The average price for a 1966 Cadillac Eldorado Differential at Advance Auto Parts is around $21.65, with a range that starts at $7.99 and goes up to $47.49. With 5 options in stock from 2 trusted brands, finding the right fit is easy. Popular picks like Bearing Race, Tapered Roller Bearing Cone, and Bearing Race start at just $10.79 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 Spindles and Universal Joints. At Advance Auto Parts, we’re here to help you keep your 1966 Cadillac Eldorado in peak condition, inside and out.
Find Your Specific 1966 Cadillac Eldorado Differentials
Looking for the perfect Differential for your 1966 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 1966 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 1966 Cadillac Eldorado Differentials
National – Tapered Roller Bearing Cone (Part No.HM804846)
from
$47.49
Manufactured with premium-grade steel, National taper bearing cones feature crowned raceways and rollers to ensure even load distribution.
Product Features:
See More
Product Features:
- PREMIUM MATERIALS – Precision manufactured using premium-grade steel for outstanding durability and performance
- SMOOTH ROTATION – Crowned raceways and rollers for even load distribution
- OE-STYLE DESIGN – Engineered to meet OE specifications
- COMPREHENSIVE COVERAGE – Industry-leading coverage for domestic and import applications
- RIGOROUS TESTING – Comprehensive testing throughout design and development processes by National engineers for quality you can count on
National – Bearing Race (Part No.HM804810)
from
$24.99
Manufactured with premium-grade steel, National taper bearing cups feature crowned raceways to ensure even load distribution.
Product Features:
See More
Product Features:
- PREMIUM MATERIALS – Precision manufactured using premium-grade steel for outstanding durability and performance
- SMOOTH ROTATION – Crowned raceways for even load distribution
- OE-STYLE DESIGN – Engineered to meet OE specifications
- COMPREHENSIVE COVERAGE – Industry-leading coverage for domestic and import applications
- RIGOROUS TESTING – Comprehensive testing throughout design and development processes by National engineers for quality you can count on
Driveworks – Tapered Roller Bearing (Part No.S-M-802048)
Driveworks – Taper Bearing Cup (Part No.S-LM-501314)
from
$7.99
Value-priced bearing meets all cataloged application requirements.
Product Features:
See More
Product Features:
- Brand may vary by location
Driveworks – Tapered Roller Bearing (Part No.S-HM-803110)
Felpro – Differential Carrier Gasket Oval Shaped 14 Bolt Hole Gasket (Part No.RDS 5396)
from
$7.99
Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust.
Product Features:
See More
Product Features:
- Meets or exceeds all original equipment specifications
- Application specific design to ensure a perfect fit
- Unsurpassed quality you can trust
- Validated for fit, form and function
- Each Fel-Pro gasket, no matter how small, is engineered to exacting standards with proprietary design, engineering and manufacturing processes
National – Bearing Race (Part No.HM89410)
from
$10.79
Manufactured with premium-grade steel, National taper bearing cups feature crowned raceways to ensure even load distribution.
Product Features:
See More
Product Features:
- PREMIUM MATERIALS – Precision manufactured using premium-grade steel for outstanding durability and performance
- SMOOTH ROTATION – Crowned raceways for even load distribution
- OE-STYLE DESIGN – Engineered to meet OE specifications
- COMPREHENSIVE COVERAGE – Industry-leading coverage for domestic and import applications
- RIGOROUS TESTING – Comprehensive testing throughout design and development processes by National engineers for quality you can count on
National – Bearing Race (Part No.HM803110)
from
$20.49
Manufactured with premium-grade steel, National taper bearing cups feature crowned raceways to ensure even load distribution.
Product Features:
See More
Product Features:
- PREMIUM MATERIALS – Precision manufactured using premium-grade steel for outstanding durability and performance
- SMOOTH ROTATION – Crowned raceways for even load distribution
- OE-STYLE DESIGN – Engineered to meet OE specifications
- COMPREHENSIVE COVERAGE – Industry-leading coverage for domestic and import applications
- RIGOROUS TESTING – Comprehensive testing throughout design and development processes by National engineers for quality you can count on
National – Multi-Purpose Bearing (Part No.A-5)
from
$16.99
Product Features:
See More
- CONSISTENT PERFORMANCE: Matched cup and cone components ensure consistent performance
- PREMIUM MATERIALS: Precision manufactured using premium-grade steel for outstanding durability and performance
- SMOOTH ROTATION: Crowned raceways and rollers for even load distribution
- OE-STYLE DESIGN: Engineered to meet OE specifications
- COMPREHENSIVE COVERAGE: Industry-leading coverage for domestic and import applications
- RIGOROUS TESTING: Comprehensive testing throughout design and development processes by National engineers for quality you can count on
Popular 1966 Cadillac Eldorado Differentials Categories
Most Popular Rear Differential Pinion Bearing for 1966 Cadillac Eldorados
Enhance your 1966 Cadillac Eldorado with this popular Rear Differential Pinion Bearing we have in stock, for $10.79.
National – Bearing Race (Part No.HM89410)
from
$10.79
Manufactured with premium-grade steel, National taper bearing cups feature crowned raceways to ensure even load distribution.
Product Features:
See More
Product Features:
- PREMIUM MATERIALS – Precision manufactured using premium-grade steel for outstanding durability and performance
- SMOOTH ROTATION – Crowned raceways for even load distribution
- OE-STYLE DESIGN – Engineered to meet OE specifications
- COMPREHENSIVE COVERAGE – Industry-leading coverage for domestic and import applications
- RIGOROUS TESTING – Comprehensive testing throughout design and development processes by National engineers for quality you can count on
Best-Selling 1966 Cadillac Eldorado Front Differential Pinion Bearings
Upgrade your Eldorado with one of our 2 best-selling Front Differential Pinion Bearings.
National – Tapered Roller Bearing Cone (Part No.HM804846)
from
$47.49
Manufactured with premium-grade steel, National taper bearing cones feature crowned raceways and rollers to ensure even load distribution.
Product Features:
See More
Product Features:
- PREMIUM MATERIALS – Precision manufactured using premium-grade steel for outstanding durability and performance
- SMOOTH ROTATION – Crowned raceways and rollers for even load distribution
- OE-STYLE DESIGN – Engineered to meet OE specifications
- COMPREHENSIVE COVERAGE – Industry-leading coverage for domestic and import applications
- RIGOROUS TESTING – Comprehensive testing throughout design and development processes by National engineers for quality you can count on
National – Bearing Race (Part No.HM804810)
from
$24.99
Manufactured with premium-grade steel, National taper bearing cups feature crowned raceways to ensure even load distribution.
Product Features:
See More
Product Features:
- PREMIUM MATERIALS – Precision manufactured using premium-grade steel for outstanding durability and performance
- SMOOTH ROTATION – Crowned raceways for even load distribution
- OE-STYLE DESIGN – Engineered to meet OE specifications
- COMPREHENSIVE COVERAGE – Industry-leading coverage for domestic and import applications
- RIGOROUS TESTING – Comprehensive testing throughout design and development processes by National engineers for quality you can count on
Top-Quality Pinion Shaft Bearings for 1966 Cadillac Eldorados
Choose a high-quality OEM or aftermarket Pinion Shaft Bearing for Cadillac Eldorados and enjoy top-notch performance from $16.99.
National – Multi-Purpose Bearing (Part No.A-5)
from
$16.99
Product Features:
See More
- CONSISTENT PERFORMANCE: Matched cup and cone components ensure consistent performance
- PREMIUM MATERIALS: Precision manufactured using premium-grade steel for outstanding durability and performance
- SMOOTH ROTATION: Crowned raceways and rollers for even load distribution
- OE-STYLE DESIGN: Engineered to meet OE specifications
- COMPREHENSIVE COVERAGE: Industry-leading coverage for domestic and import applications
- RIGOROUS TESTING: Comprehensive testing throughout design and development processes by National engineers for quality you can count on
Our Top Pick for a 1966 Cadillac Eldorado Automatic Transmission Differential Cover Gasket
Invest in a
durable Automatic Transmission Differential Cover Gasket for your 1966 Cadillac, knowing you’re getting trusted brands and expert craftsmanship.
Felpro – Differential Carrier Gasket Oval Shaped 14 Bolt Hole Gasket (Part No.RDS 5396)
from
$7.99
Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust.
Product Features:
See More
Product Features:
- Meets or exceeds all original equipment specifications
- Application specific design to ensure a perfect fit
- Unsurpassed quality you can trust
- Validated for fit, form and function
- Each Fel-Pro gasket, no matter how small, is engineered to exacting standards with proprietary design, engineering and manufacturing processes
Top-Rated Differential Brands For Your 1966 Cadillac Eldorado
When it comes to finding the perfect Differential for your 1966 Cadillac Eldorado, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 2 trusted brands. We carry the most popular Differential brands including National, and more, all known for their exceptional customer ratings (average brand rating of 4.3 stars) and competitive prices, as low as $16.99. Purchasing a Differential from us here at Advance Auto Parts is a smart move for both you and your 1966 Cadillac Eldorado, providing peace of mind with parts that meet or exceed OEM standards.
Popular National 1966 Cadillac Eldorado Differentials
If you’re looking for a top-quality Differential for your 1966 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 $16.99, you’ll find the perfect Differential for your needs and budget. National Differentials for the 1966 Cadillac Eldorado come highly rated, with over 39 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.
FAQs for 1966 Cadillac Eldorado Differentials
What are the best-selling Differentials for 1966 Cadillac Eldorados?
Out of 5 Differentials that fit 1966 Cadillac Eldorados, the following parts are the top sellers:
- Bearing Race (5052416) – $10.79
- Tapered Roller Bearing Cone (3276937) – $47.49
- Bearing Race (3276929) – $24.99
What’s the price range for 1966 Cadillac Eldorado Differentials?
The prices of Differentials for the 1966 Cadillac Eldorado range from $7.99 up to $47.49 for the most premium parts.
What is the average price of a Differential for a 1966 Cadillac Eldorado?
The average price for Differentials for the 1966 Cadillac Eldorado is $21.65. 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 1966 Cadillac Eldorado?
The cheapest 1966 Cadillac Eldorado Differentials we carry are:
- Differential Carrier Gasket Oval Shaped 14 Bolt Hole Gasket (19780422) – $7.99
- Bearing Race (5052416) – $10.79
- Multi-Purpose Bearing (3275965) – $16.99
- Bearing Race (3276929) – $24.99
- Tapered Roller Bearing Cone (3276937) – $47.49
Does Advance Auto Parts sell Differentials for any other 1966 Cadillac models?
Yes. We stock Differentials for 3 other popular 1966 Cadillac models. Some of the most popular are 1966 DeVille Differentials, 1966 Fleetwood Differentials, 1966 Calais Differentials, and 1966 Commercial Chassis Differentials.
What are the top-rated Differentials that fit the 1966 Cadillac Eldorado?
The one 1966 Cadillac Eldorado Differential we have in stock is the Differential Carrier Gasket Oval Shaped 14 Bolt Hole Gasket. It costs $7.99.
What types of Differentials do you sell for my 1966 Cadillac Eldorado?
As of 11/2/25, these are some of the most in-demand types of Differentials for a 1966 Cadillac Eldorado:
Can I get help with 1966 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.