1966 Cadillac Fleetwood Differentials
Keep Your 1966 Cadillac Fleetwood 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 Fleetwood 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 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 Driveworks. For example, Driveworks Differentials start at just $11.99 with an average 4.2 star rating. With over 70 reviews and a solid 4.5 star average, you can shop with confidence knowing other Cadillac Fleetwood owners approve.
Competitive Prices and Extensive Inventory
The average price for a 1966 Cadillac Fleetwood Differential at Advance Auto Parts is around $25.99, with a range that starts at $7.99 and goes up to $46.49. With 7 options in stock from 4 trusted brands, finding the right fit is easy. Popular picks like National Bearing Race, HM89410, National Tapered Roller Bearing Cone, HM804846, and Driveworks Wheel Bearing, S-RW-509-FR start at just $11.49 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 Fleetwood in peak condition, inside and out.
Find Your Specific 1966 Cadillac Fleetwood Differentials
Looking for the perfect Differential for your 1966 Cadillac Fleetwood? 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 Fleetwood. Whether you’re driving a 1966 model or another popular model year like
1988,
1989,
1990,
1991,
1992,
1993,
1994,
1995, and
1996, 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 Fleetwood Differentials
National – National Bearing Race, HM89410 (Part No.HM89410)
from
$11.49
Manufactured with premium-grade steel, National taper bearing cups feature crowned raceways to ensure even load distribution.
See More
Yukon Gear – "Yukon Gear Redline Synthetic ""Shock Proof"" Oil – 4 Quarts, 15004" (Part No.15004)
from
$137.99
Redline Heavy Shockproof Gear Oil is formulated to provide lasting protection.
See More
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.
See More
Yukon Gear – Yukon Gear 3 Qt – Penzoil 80W90 Conventional Gear Oil, 15002 (Part No.15002)
from
$44.99
Union 76 gear oil is a conventional non-synthetic 80W90 formulation designed for all types of differentials.
See More
National – National Tapered Roller Bearing Cone, HM89249 (Part No.HM89249)
from
$32.49
Manufactured with premium-grade steel, National taper bearing cones feature crowned raceways and rollers to ensure even load distribution.
See More
National – National Bearing Race, HM89210 (Part No.HM89210)
from
$15.29
Manufactured with premium-grade steel, National taper bearing cups feature crowned raceways to ensure even load distribution.
See More
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.
See More
Driveworks – Driveworks Taper Bearing Cone, S-HM-88649 (Part No.S-HM-88649)
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.
See More
Driveworks – Driveworks Tapered Roller Bearing, S-LM-603012 (Part No.S-LM-603012)
National – National Tapered Roller Bearing Cone, LM104949 (Part No.LM104949)
from
$24.29
Manufactured with premium-grade steel, National taper bearing cones feature crowned raceways and rollers to ensure even load distribution.
See More
National – National Bearing Race, LM104911A (Part No.LM104911A)
from
$21.79
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-HM-804846 (Part No.S-HM-804846)
Driveworks – Driveworks Wheel Bearing, S-RW-509-FR (Part No.S-RW-509-FR)
Driveworks – Driveworks Wheel Bearing Kit, S-RA-321 (Part No.S-RA-321)
Felpro – Felpro Differential Carrier Gasket Oval Shaped 14 Bolt Hole Gasket, RDS 5396 (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.
See More
Driveworks – Driveworks Taper Bearing Set, S-A-5 (Part No.S-A-5)
Popular 1966 Cadillac Fleetwood Differentials Categories
Most Popular Differential Carrier Bearing Set for 1966 Cadillac Fleetwoods
Enhance your 1966 Cadillac Fleetwood 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)
Best-Selling 1966 Cadillac Fleetwood Differential Oil
Upgrade your Fleetwood with our best-selling Differential Oil.
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.
See More
Top-Quality Front Differential Pinion Bearings for 1966 Cadillac Fleetwoods
Choose a high-quality OEM or aftermarket Front Differential Pinion Bearing for Cadillac Fleetwoods and enjoy top-notch performance from $46.49.
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.
See More
Our Top Pick for a 1966 Cadillac Fleetwood Rear Differential Pinion Bearing
Invest in a
durable Rear Differential Pinion Bearing for your 1966 Cadillac, knowing you’re getting trusted brands and expert craftsmanship.
National – National Bearing Race, HM89410 (Part No.HM89410)
from
$11.49
Manufactured with premium-grade steel, National taper bearing cups feature crowned raceways to ensure even load distribution.
See More
Differential Bearings for 1966 Cadillac Fleetwoods
Make a smart move for your 1966 Cadillac Fleetwood with products all priced from $25.99 to $41.99.
Top-Rated Differential Brands For Your 1966 Cadillac Fleetwood
When it comes to finding the perfect Differential for your 1966 Cadillac Fleetwood, 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 Driveworks, and more, all known for their exceptional customer ratings (average brand rating of 4.2 stars) and competitive prices, as low as $11.99. Purchasing a Differential from us here at Advance Auto Parts is a smart move for both you and your 1966 Cadillac Fleetwood, providing peace of mind with parts that meet or exceed OEM standards.
Popular Driveworks 1966 Cadillac Fleetwood Differentials
If you’re looking for a top-quality Differential for your 1966 Cadillac Fleetwood, 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 1966 Cadillac Fleetwood 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.
FAQs for 1966 Cadillac Fleetwood Differentials
What are the best-selling Differentials for 1966 Cadillac Fleetwoods?
Out of 7 Differentials that fit 1966 Cadillac Fleetwoods, the following parts are the top sellers:
- National Bearing Race, HM89410 (5052416) – $11.49
- National Tapered Roller Bearing Cone, HM804846 (3276937) – $46.49
- Driveworks Wheel Bearing, S-RW-509-FR (11339661) – $25.99
What’s the price range for 1966 Cadillac Fleetwood Differentials?
The prices of Differentials for the 1966 Cadillac Fleetwood range from $7.99 up to $46.49 for the most premium parts.
What is the average price of a Differential for a 1966 Cadillac Fleetwood?
The average price for Differentials for the 1966 Cadillac Fleetwood is $25.99. 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 Fleetwood model years?
What are the cheapest Differentials for my 1966 Cadillac Fleetwood?
The cheapest 1966 Cadillac Fleetwood Differentials we carry are:
- Felpro Differential Carrier Gasket Oval Shaped 14 Bolt Hole Gasket, RDS 5396 (19780422) – $7.99
- National Bearing Race, HM89410 (5052416) – $11.49
- Driveworks Taper Bearing Set, S-A-5 (5050529) – $11.99
- Driveworks Wheel Bearing, S-RW-509-FR (11339661) – $25.99
- Valvoline Multi-Vehicle (ATF) Full Synthetic Automatic Transmission Fluid 1 GA, 904891 (50154410) – $35.99
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 Eldorado Differentials, 1966 Calais Differentials, and 1966 Commercial Chassis Differentials.
What are the top-rated Differentials that fit the 1966 Cadillac Fleetwood?
The one 1966 Cadillac Fleetwood Differential we have in stock is the Felpro Differential Carrier Gasket Oval Shaped 14 Bolt Hole Gasket, RDS 5396. It costs $7.99.
What types of Differentials do you sell for my 1966 Cadillac Fleetwood?
As of 8/2/26, these are some of the most in-demand types of Differentials for a 1966 Cadillac Fleetwood:
Can I get help with 1966 Cadillac Fleetwood 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 Fleetwood Differentials?
Advance Auto Parts keeps returns simple. For new Cadillac Fleetwood Differentials and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.