1966 Jeep Gladiator Differentials

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Keep Your 1966 Jeep Gladiator in Top Shape with Quality Differentials

Whether you’re repairing or upgrading your Differential, using high-quality parts is key to keeping your 1966 Jeep Gladiator looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Rear Differential Cover Gaskets, Differential Pinion Seals, and Differential 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, Felpro, and Driveworks. For example, National Differentials start at just $9.99 with an average 4.3 star rating. Felpro and Driveworks offer similar pricing and quality, backed by strong customer feedback. With over 102 reviews and a solid 4.3 star average, you can shop with confidence knowing other Jeep Gladiator owners approve.

Competitive Prices and Extensive Inventory

The average price for a 1966 Jeep Gladiator Differential at Advance Auto Parts is around $20.66, with a range that starts at $1.15 and goes up to $44.99. With 30 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, Driveworks Oil Seal, S-5778, and National Tapered Roller Bearing Cone, HM88649 start at just $13.99 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 Universal Joints. At Advance Auto Parts, we’re here to help you keep your 1966 Jeep Gladiator in peak condition, inside and out.

Essential 1966 Jeep Gladiator Differentials

Needa Parts – "Needa Parts Standard Engine Oil Drain Plug: 7/8 "" -16 Thread, 1-1/8 "" Head (Sold by each), 090-018" (Part No.090-018)

"Needa Parts Standard Engine Oil Drain Plug: 7/8 "" -16 Thread, 1-1/8 "" Head (Sold by each), 090-018"

from

$11.49
This engine oil drain plug is designed to match the fit and function of an original equipment plug on specified vehicles. It is engineered to replace a missing or damaged plug and help ensure a secure seal.
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National – National Tapered Roller Bearing Cone, HM88542 (Part No.HM88542)

National Tapered Roller Bearing Cone, HM88542

from

$24.29
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, 02872 (Part No.02872)

National Tapered Roller Bearing Cone, 02872

from

$24.99
National Oil Seals & Bearings offer a full line of premium oil seals and bearings.
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National – National Shaft Repair Sleeve, 99155 (Part No.99155)

National Shaft Repair Sleeve, 99155

from

$39.49
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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National – National Bearing Race, HM807010 (Part No.HM807010)

National Bearing Race, HM807010

from

$27.49
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, 02820 (Part No.02820)

National Bearing Race, 02820

from

$13.49
National Oil Seals & Bearings offer a full line of premium oil seals and bearings.
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National – National Taper Bearing Cup, 31520 (Part No.31520)

National Taper Bearing Cup, 31520

from

$13.79
Manufactured with premium-grade steel, National taper bearing cups feature crowned raceways to ensure even load distribution.
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Felpro – Felpro Axle Housing Cover Gasket Irregular Shaped 10 Bolt Hole Gasket, RDS 6014 (Part No.RDS 6014)

Felpro Axle Housing Cover Gasket Irregular Shaped 10 Bolt Hole Gasket, RDS 6014

from

$17.99
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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Driveworks – Driveworks Tapered Roller Bearing, S-14274 (Part No.S-14274)

Driveworks Tapered Roller Bearing, S-14274

from

$5.99
Driveworks Tapered Roller Bearing, S-14274.
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National – National Taper Bearing Cup, 15245 (Part No.15245)

National Taper Bearing Cup, 15245

from

$9.99
Manufactured with premium-grade steel, National® taper bearing cups feature crowned raceways to ensure even load distribution.
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Schaeffler – Schaeffler Bearing – TRB (Tapered Roller Bearing), KT45 (Part No.KT45)

Schaeffler Bearing - TRB (Tapered Roller Bearing), KT45

from

$21.99
With advanced load-carrying capacity and compact design, tapered roller bearings are used in wheel bearings, transmissions, differentials, transfer cases and other miscellanous applications. FAG manufacturers over 100 million tapered roller bearings annually.
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Crown Auto Jeep Replacmnt – Crown Auto Jeep Replacmnt OE Replacement, Single, J4004913 (Part No.J4004913)

Crown Auto Jeep Replacmnt OE Replacement, Single, J4004913

from

$3.99
Crown Automotive offers the largest line of replacement parts for Jeep (R), as well as a growing line of parts for Chrysler and Dodge vehicles. Our applications features Axle, Body, Brake, Clutch, Cooling, Electrical, Engine, Fuel, Lamps, Mirrors, Steering, Suspension, Transmission and Wiper.
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National – National Differential Pinion Seal, 5778 (Part No.5778)

National Differential Pinion Seal, 5778

from

$23.79
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 Oil Seal, S-5778 (Part No.S-5778)

Driveworks Oil Seal, S-5778

from

$13.99
Value-priced seal meets all cataloged application requirements.
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National – National Multi-Purpose Seal, 6808N (Part No.6808N)

National Multi-Purpose Seal, 6808N

from

$16.99
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.
See More

Felpro – Felpro Axle Housing Cover Gasket Irregular Shaped 10 Bolt Hole Gasket, RDS 6629 (Part No.RDS 6629)

Felpro Axle Housing Cover Gasket Irregular Shaped 10 Bolt Hole Gasket, RDS 6629

from

$7.99
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

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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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

Felpro – Felpro Axle Housing Cover Gasket Irregular Shaped 10 Bolt Hole Gasket, RDS 12758 (Part No.RDS 12758)

Felpro Axle Housing Cover Gasket Irregular Shaped 10 Bolt Hole Gasket, RDS 12758

from

$11.99
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

Most Popular Rear Differential Cover Gasket for 1966 Jeep Gladiators

Enhance your 1966 Jeep Gladiator with this popular Rear Differential Cover Gasket we have in stock, for $11.99.

Felpro – Felpro Axle Housing Cover Gasket Irregular Shaped 10 Bolt Hole Gasket, RDS 12758 (Part No.RDS 12758)

Felpro Axle Housing Cover Gasket Irregular Shaped 10 Bolt Hole Gasket, RDS 12758

from

$11.99
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

Best-Selling 1966 Jeep Gladiator Differential Pinion Seals

Upgrade your Gladiator with one of our 3 best-selling Differential Pinion Seals, earning an average 4.5 stars rating across 7 reviews.

National – National Differential Pinion Seal, 5778 (Part No.5778)

National Differential Pinion Seal, 5778

from

$23.79
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.
See More

Driveworks – Driveworks Oil Seal, S-5778 (Part No.S-5778)

Driveworks Oil Seal, S-5778

from

$13.99
Value-priced seal meets all cataloged application requirements.
See More

National – National Multi-Purpose Seal, 6808N (Part No.6808N)

National Multi-Purpose Seal, 6808N

from

$16.99
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.
See More

Top-Quality Differential Bearings for 1966 Jeep Gladiators

Choose a high-quality OEM or aftermarket Differential Bearing for Jeep Gladiators and enjoy top-notch performance from $9.99.

National – National Bearing Race, 382A (Part No.382A)

National Bearing Race, 382A

from

$13.99
Manufactured with premium-grade steel, National taper bearing cups feature crowned raceways to ensure even load distribution.
See More

National – National Tapered Roller Bearing Cone, 24780 (Part No.24780)

National Tapered Roller Bearing Cone, 24780

from

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

National – National Taper Bearing Cup, 15245 (Part No.15245)

National Taper Bearing Cup, 15245

from

$9.99
Manufactured with premium-grade steel, National® taper bearing cups feature crowned raceways to ensure even load distribution.
See More

National – National Bearing Race, 382S (Part No.382S)

National Bearing Race, 382S

from

$23.29
Manufactured with premium-grade steel, National taper bearing cups feature crowned raceways to ensure even load distribution.
See More

National – National Tapered Roller Bearing Cone, 25577 (Part No.25577)

National Tapered Roller Bearing Cone, 25577

from

$33.49
Manufactured with premium-grade steel, National taper bearing cones feature crowned raceways and rollers to ensure even load distribution.
See More

Schaeffler – Schaeffler Bearing – TRB (Tapered Roller Bearing), KT45 (Part No.KT45)

Schaeffler Bearing - TRB (Tapered Roller Bearing), KT45

from

$21.99
With advanced load-carrying capacity and compact design, tapered roller bearings are used in wheel bearings, transmissions, differentials, transfer cases and other miscellanous applications. FAG manufacturers over 100 million tapered roller bearings annually.
See More

National – National Bearing Race, 25523 (Part No.25523)

National Bearing Race, 25523

from

$20.29
Manufactured with premium-grade steel, National taper bearing cups feature crowned raceways to ensure even load distribution.
See More

Top Picks for 1966 Jeep Gladiator Differential Oil

Invest in one of our 2 durable Differential Oil for your 1966 Jeep, 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

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.
See More

Our Top-Rated Rear Housing Cover Gaskets for 1966 Jeep Gladiators

Make a smart move for your 1966 Jeep Gladiator with our Rear Housing Cover Gasket for $7.99.

Felpro – Felpro Axle Housing Cover Gasket Irregular Shaped 10 Bolt Hole Gasket, RDS 6629 (Part No.RDS 6629)

Felpro Axle Housing Cover Gasket Irregular Shaped 10 Bolt Hole Gasket, RDS 6629

from

$7.99
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-Rated Differential Brands For Your 1966 Jeep Gladiator

When it comes to finding the perfect Differential for your 1966 Jeep Gladiator, 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 Felpro, National, and Driveworks, and more, all known for their exceptional customer ratings (average brand rating of 4.6 stars) and competitive prices, as low as $7.99. Purchasing a Differential from us here at Advance Auto Parts is a smart move for both you and your 1966 Jeep Gladiator, providing peace of mind with parts that meet or exceed OEM standards.

Popular Felpro 1966 Jeep Gladiator Differentials

If you’re looking for a top-quality Differential for your 1966 Jeep Gladiator, Advance Auto Parts has exactly what you need with our selection of Felpro Differentials. We have 2 Felpro Differentials in stock for this fitment, all known for their durability and precision fit. With prices starting at just $7.99 and an average cost of $12.99, you’ll find the perfect Differential for your needs and budget. Felpro Differentials for the 1966 Jeep Gladiator come highly rated, with over 11 customer reviews and an impressive average rating of 4.6 stars. Choosing a Felpro Differential from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.
Felpro Axle Housing Cover Gasket Irregular Shaped 10 Bolt Hole Gasket, RDS 6014
from $17.99
(1)
Felpro Axle Housing Cover Gasket Irregular Shaped 10 Bolt Hole Gasket, RDS 6014
“OEM only uses silicone , the gasket set with a thin layer of silicone is a much better sealant method”

Top-Quality National 1966 Jeep Gladiator Differentials

For those in search of a high-quality Differential for their 1966 Jeep Gladiator, Advance Auto Parts offers a great selection of National Differentials. With 3 National 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 $9.99, with an average price of $19.82, giving you a range of options to suit your budget. Backed by over 15 customer ratings and an average rating of 4.3 stars, National Differentials provide both reliability and excellent performance. Choosing a National Differential from Advance Auto Parts is a smart investment in your vehicle’s performance and longevity.
National Taper Bearing Cup, 15245
from $9.99
(8)
National Taper Bearing Cup, 15245
“It fits in Ford. I drove only few hundred miles can’t say much about it.”
National Tapered Roller Bearing Cone, 24780
from $35.49
(1)
National Tapered Roller Bearing Cone, 24780
“Used in A Bush Hog rotory cutter. Has to be tough.”
National Bearing Race, 382A
from $13.99
(6)
National Bearing Race, 382A
“Fit perfectly. No difficulty replacing my old ones.”

FAQs for 1966 Jeep Gladiator Differentials

What are the best-selling Differentials for 1966 Jeep Gladiators?

Out of 30 Differentials that fit 1966 Jeep Gladiators, the following parts are the top sellers:

What’s the price range for 1966 Jeep Gladiator Differentials?

The prices of Differentials for the 1966 Jeep Gladiator range from $1.15 up to $44.99 for the most premium parts.

What is the average price of a Differential for a 1966 Jeep Gladiator?

The average price for Differentials for the 1966 Jeep Gladiator is $20.66. 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 Jeep Gladiator model years?

Yes, we carry Differentials for 6 model years of Jeep Gladiators between 1962 and 1969. The following model years are the most popular for Differential purchases: 1969, 1968, 1967, 1965, 1964, 1963, and 1962.

What are the cheapest Differentials for my 1966 Jeep Gladiator?

Does Advance Auto Parts sell Differentials for any other 1966 Jeep models?

Yes. We stock Differentials for 26 other popular 1966 Jeep models. Some of the most popular are 1966 Wagoneer Differentials, 1966 CJ5 Differentials, 1966 DJ5 Differentials, 1966 J-2600 Differentials, and 1966 J-2500 Differentials.

What types of Differentials do you sell for my 1966 Jeep Gladiator?

As of 8/2/26, these are some of the most in-demand types of Differentials for a 1966 Jeep Gladiator:

Can I get help with 1966 Jeep Gladiator Differential orders?

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

What is your return policy for Jeep Gladiator Differentials?

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