1966 Jeep CJ3 Differentials

Keep Your 1966 Jeep CJ3 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 CJ3 looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Differential Axle Shafts, Differential Pinion Seals, and Differential Oil. 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 Omix. For example, National Differentials start at just $10.99 with an average 4.3 star rating. Omix offer similar pricing and quality, backed by strong customer feedback. With over 12 reviews and a solid 4 star average, you can shop with confidence knowing other Jeep CJ3 owners approve.

Explore Related Parts

While you’re upgrading or replacing your Differential, don’t forget to check out other key components like 4WD Components and Universal Joints. At Advance Auto Parts, we’re here to help you keep your 1966 Jeep CJ3 in peak condition, inside and out.

Essential 1966 Jeep CJ3 Differentials

Omix – Spider Gear Kit for Dana 27 (Part No.16507.01)

Spider Gear Kit for Dana 27

from

$125.99
Rebuilding your Jeep differentials? Are the spider gears worn? While everything is apart, it’s smart to replace worn gears. That will save the labor to do it again later. Or risk having the gear teeth break and ruin more parts.

Product Features:
  • 10 Spline
  • OE Style
  • Direct Fit
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Yukon Gear – Wiper Kit Small With 8 Retaining Bolts, Dana 25, Dana 27, Dana 30, & Dana 44 (Part No.32302)

Wiper Kit Small With 8 Retaining Bolts, Dana 25, Dana 27, Dana 30, & Dana 44

from

$138.99
Wiper kit SMALL w/8 retaining bolts, Dana 25, Dana 27, Dana 30, & Dana 44.

Product Features:
  • Fits Dana Spicer 25, 27, 30 and 44 front
  • 8 bolt design
  • Services one side
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Omix – Axle Shaft Assembly; LH; for Dana 25; 41-71 Willys/Jeep Models (Part No.16523.01)

Axle Shaft Assembly; LH; for Dana 25; 41-71 Willys/Jeep Models

from

$377.99
Has your front axle shaft or U-joint failed? Omix-ADA offers complete front Jeep axle shaft assemblies providing everything you need for a simple installation. Slide the old parts out and slide the new parts in. You’ll be back on the road in no time.

Product Features:
  • Front Left Driver Side
  • OE Style
  • Direct Fit
See More

National – Bearings (Part No.31520)

Bearings

from

$13.49
Manufactured with premium-grade steel, National taper bearing cups feature crowned raceways to ensure even load distribution.

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
See More

National – Shaft Repair Sleeve (Part No.99155)

Shaft Repair Sleeve

from

$38.99
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.

Product Features:
  • Designed to repair damaged, grooved or worn shafts
  • Durable stainless steel construction for corrosion-free sealing surface that surpasses most original shaft specifications
  • Ideal for a shaft where indications of seal wear, such as tracks or grooves have developed
  • Ultra-thin construction (0.01/0.25mm wall thickness) allows original seal size to be used with minimal additional lip loading
  • Easy to install with removable flange and installation tool
  • Installation tool reduces sleeve distortion and allows for installation without removal from the shaft
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Omix – Differential Cover Gasket; for Dana 25/27/30 (Part No.16502.01)

Differential Cover Gasket; for Dana 25/27/30

from

$6.49
Is your Jeep differential cover leaking? Do you need to seal it up after some work? Omix-ADA has the OE quality differential gaskets you need.

Product Features:
  • Rubber
  • Sold Individually
  • OE Style
  • Direct Fit
See More

Omix – Drive Shaft Pinion Yoke (Part No.16580.01)

Drive Shaft Pinion Yoke

from

$101.99
Direct OE replacement Jeep parts and accessories built to the original specifications by Omix-ADA. Limited five year Manufacturer’s warranty.

Product Features:
  • OE Style
  • Direct Fit
  • Front Or Rear
  • U-bolt Style
See More

Powertrax – Lock Right Locker (Part No.2115-LR)

Lock Right Locker

from

$425.99
The Powertrax Lock-Right ultra-strength alloy locker’s straight-line performance is equal to a solid spool, but automatically unlocks in turns. Best suited for extreme off-road to severe on-road use, Powertrax Lock Right lockers replace the spider gears in your open differential carrier using basic tools and without affecting your ring and pinion settings. The whole job can be done in your driveway in a couple of hours, pin included! Powertrax Grip-Lok, Lock-Right Lockers and No-Slip Traction Systems automatically provide 100% traction on-demand, under the toughest circumstances. The Powertrax Grip-Pro and Grip-LS performance limited slips offer smooth dependable torque transfer and traction for the best of both worlds!

Product Features:
  • Powertrax® proves that you don’t have to choose between the superior traction of a locking differential and smooth handling and drivability of an open differential. Powertrax Lock-Right Lockers, No-Slip Traction Systems and GRIP limited slip differentials and lockers give you the best of both worlds!
  • The Powertrax® Lock-Right Locker provides outstanding traction for off-road machines and race vehicles. Powertrax No-Slip Traction Systems deliver excellent performance to street-driven cars and trucks.
  • Powertrax® lockers range from the original, Lock-Right for serious straight-line performance, to the No-Slip traction system for street-able vehicles.
  • Powertrax® offers three levels of GRIP locking differentials, ranging from the clutch-type GRIP LS with a forged steel case, the gear-driven GRIP PRO and finally the GRIP LOK for extreme traction.
  • Powertrax® = Extreme Traction Systems!
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National – Bearing Race (Part No.24721)

Bearing Race

from

$21.79
Manufactured with premium-grade steel, National taper bearing cups feature crowned raceways to ensure even load distribution.

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
See More

FAG US – Cup (Part No.LM501310)

Cup

from

$9.99
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.

Product Features:
  • High-precision and High-quality components used in all KITs
  • Coverage of classic and new high-tech solutions for the best system coverage
See More

Omix – Pinion Bearing Shim Kit; for Dana 25; 41-71 Willys/CJ Models (Part No.16519.01)

Pinion Bearing Shim Kit; for Dana 25; 41-71 Willys/CJ Models

from

$73.99
Direct OE replacement Jeep parts and accessories built to the original specifications by Omix-ADA.

Product Features:
  • Steel
  • OE Style
  • Direct Fit
See More

National – Tapered Roller Bearing Cone (Part No.31594)

Tapered Roller Bearing Cone

from

$33.99
Manufactured with premium-grade steel, National taper bearing cones feature crowned raceways and rollers to ensure even load distribution.

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
See More

National – Tapered Roller Bearing Cone (Part No.02872)

Tapered Roller Bearing Cone

from

$24.79
National Oil Seals & Bearings offer a full line of premium oil seals and bearings.

Product Features:
  • Premium bearing design matches OEM specifications
  • Precision manufactured using premium-grade steel for outstanding durability and performance
  • Crowned raceways and rollers to ensure even load distribution for maximum life
  • Industry leading coverage
  • Professional technicians know they can depend on National
See More

Crown Auto Jeep Replacmnt – For Use With Model 25 Front/ Model 27 Front/ Model 30 Front, Steel/Rubber (Part No.J0998092)

For Use With Model 25 Front/ Model 27 Front/ Model 30 Front, Steel/Rubber

from

$8.99
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.

Product Features:
  • Long-Lasting, Durable Crown Automotive Products
  • Hazardous Free Material
  • Offers OE Fit And Function
  • Crown Automotive Has Consistently Maintained Its Commitment To Offering Only Quality Parts
See More

Crown Auto Jeep Replacmnt – For Use With Model 25 Front/ Model 27 Front/ Model 30 Front/ Model 41 Rear, Zinc (Part No.639265)

For Use With Model 25 Front/ Model 27 Front/ Model 30 Front/ Model 41 Rear, Zinc

from

$8.99
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.

Product Features:
  • Long-Lasting, Durable Crown Automotive Products
  • Hazardous Free Material
  • Offers OE Fit And Function
  • Crown Automotive Has Consistently Maintained Its Commitment To Offering Only Quality Parts
See More

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

Standard Engine Oil Drain Plug: 7/8 " -16 Thread, 1-1/8 " Head (sold by each)

from

$11.29
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.

Product Features:
  • Direct replacement – this engine oil drain plug is designed to match the fit and function of an original equipment plug on specified vehicles
  • Ideal solution – engineered to replace a missing or damaged plug and help ensure a secure seal
  • Durable construction – designed and manufactured to strict specifications for reliable performance
  • Trustworthy quality – backed by a team of product experts in the United States and more than a century of automotive experience
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Crown Auto Jeep Replacmnt – Dana 30 Axle/ Dana 35 Axle/ Dana 44 Axle, 3/8" L, Hex Head, Steel, Single (Part No.J0649454)

Dana 30 Axle/ Dana 35 Axle/ Dana 44 Axle, 3/8" L, Hex Head, Steel, Single

from

$2.99
Crown Automotive continues to be the leader in quality replacement parts for Jeep(R) vehicles. Crown has the largest stock of replacement parts for Jeep(R) vehicles, including factory discontinued parts. In fact, many of the older Jeeps are still on (and off) the road thanks to Crown parts. The Crown line consists of axle, body, brake, clutch, cooling, driveline, electrical, engine, exhaust, fuel, steering, suspension, transmission And transfer case components. Crown Automotive also offers an exclusive line of component kits And accessory products.

Product Features:
  • Manufactured From High Quality Material
  • Engineered To The Specifications
  • Meets The Quality Standards
  • Designed For Performance And Durability
  • Easy To Install
See More

Omix – Pinion Washer (Part No.16584.02)

Pinion Washer

from

$6.79
Direct OE replacement Jeep parts and accessories built to the original specifications by Omix-ADA. Limited five year Manufacturer’s warranty.

Product Features:
  • OE Style
  • Direct Fit
  • Limited 5 Year Warranty
See More

Omix – Pinion Nut; 41-11 Jeep Models (Part No.16584.01)

Pinion Nut; 41-11 Jeep Models

from

$3.29
Direct OE replacement Jeep parts and accessories built to the original specifications by Omix-ADA.

Product Features:
  • OE Style
  • Direct Fit
See More

Yukon Gear – Redline Synthetic "Shock Proof" Oil – 4 Quarts (Part No.15004)

Redline Synthetic "Shock Proof" Oil - 4 Quarts

from

$137.99
Redline Synthetic “Shock Proof” Oil. 4 Quarts.

Product Features:
  • Includes four quarts of Redline Shockproof oil
See More

Yukon Gear – Redline Synthetic "Shock Proof" Oil – 3 Quarts (Part No.15000)

Redline Synthetic "Shock Proof" Oil - 3 Quarts

from

$99.99
Redline Synthetic “Shock Proof” Oil. 3 Quarts.

Product Features:
  • Includes three quarts of Redline Shockproof oil
See More

Yukon Gear – Redline Synthetic "Shock Proof" Oil With Positraction Additive – 4 Quarts (Part No.15005)

Redline Synthetic "Shock Proof" Oil With Positraction Additive - 4 Quarts

from

$148.99
Redline Synthetic “Shock Proof” Oil with positraction Additive. 4 Quarts.

Product Features:
  • Includes four quarts of Redline Shockproof oil and one 4oz bottle of Yukon positraction additive
See More

Most Popular Differential Axle Shaft for 1966 Jeep CJ3s

Enhance your 1966 Jeep CJ3 with this popular Differential Axle Shaft we have in stock, for $377.99.

Omix – Axle Shaft Assembly; LH; for Dana 25; 41-71 Willys/Jeep Models (Part No.16523.01)

Axle Shaft Assembly; LH; for Dana 25; 41-71 Willys/Jeep Models

from

$377.99
Has your front axle shaft or U-joint failed? Omix-ADA offers complete front Jeep axle shaft assemblies providing everything you need for a simple installation. Slide the old parts out and slide the new parts in. You’ll be back on the road in no time.

Product Features:
  • Front Left Driver Side
  • OE Style
  • Direct Fit
See More

Best-Selling 1966 Jeep CJ3 Differential Pinion Seals

Upgrade your CJ3 with one of our 4 best-selling Differential Pinion Seals.

National – Multi-Purpose Seal (Part No.5778V)

Multi-Purpose Seal

from

$69.99
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.

Product Features:
  • Design type: spring loaded; multi-lip
  • Temperature range: -40 Deg. F to 400 Deg. F / -40 Deg. C to 204 Deg. C
  • Excellent high temperature capabilities
  • Compatible with wide range of fluids
  • Delivers quality and reliable performance for every type of repair
See More

Crown Auto Jeep Replacmnt – For Use With Model 25 Front/ Model 27 Front/ Model 30 Front/ Model 41 Rear, Zinc (Part No.639265)

For Use With Model 25 Front/ Model 27 Front/ Model 30 Front/ Model 41 Rear, Zinc

from

$8.99
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.

Product Features:
  • Long-Lasting, Durable Crown Automotive Products
  • Hazardous Free Material
  • Offers OE Fit And Function
  • Crown Automotive Has Consistently Maintained Its Commitment To Offering Only Quality Parts
See More

Crown Auto Jeep Replacmnt – For Use With Model 25 Front/ Model 27 Front/ Model 30 Front, Steel/Rubber (Part No.J0998092)

For Use With Model 25 Front/ Model 27 Front/ Model 30 Front, Steel/Rubber

from

$8.99
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.

Product Features:
  • Long-Lasting, Durable Crown Automotive Products
  • Hazardous Free Material
  • Offers OE Fit And Function
  • Crown Automotive Has Consistently Maintained Its Commitment To Offering Only Quality Parts
See More

Omix – Pinion Oil Seal ; 45-93 Willys/Jeep Models (Part No.16521.01)

Pinion Oil Seal ; 45-93 Willys/Jeep Models

from

$6.49
Do you have a gear oil leak around your differential pinion? Worried you could run low on gear oil and ruin the differential? Omix-ADA offers high-quality replacement pinion seals to keep the gear lube inside the differential where it belongs.

Product Features:
  • Steel With Rubber Inner
  • OE Style
  • Direct Fit
See More

Top-Quality Differential Oil for 1966 Jeep CJ3s

Choose a high-quality OEM or aftermarket Differential Oil for Jeep CJ3s and enjoy top-notch performance from $99.99.

Yukon Gear – Redline Synthetic "Shock Proof" Oil With Positraction Additive – 4 Quarts (Part No.15005)

Redline Synthetic "Shock Proof" Oil With Positraction Additive - 4 Quarts

from

$148.99
Redline Synthetic “Shock Proof” Oil with positraction Additive. 4 Quarts.

Product Features:
  • Includes four quarts of Redline Shockproof oil and one 4oz bottle of Yukon positraction additive
See More

Yukon Gear – Redline Synthetic "Shock Proof" Oil – 3 Quarts (Part No.15000)

Redline Synthetic "Shock Proof" Oil - 3 Quarts

from

$99.99
Redline Synthetic “Shock Proof” Oil. 3 Quarts.

Product Features:
  • Includes three quarts of Redline Shockproof oil
See More

Yukon Gear – Redline Synthetic "Shock Proof" Oil – 4 Quarts (Part No.15004)

Redline Synthetic "Shock Proof" Oil - 4 Quarts

from

$137.99
Redline Synthetic “Shock Proof” Oil. 4 Quarts.

Product Features:
  • Includes four quarts of Redline Shockproof oil
See More

Top Picks for 1966 Jeep CJ3 Differential Bearings

Invest in one of our 4 durable Differential Bearings for your 1966 Jeep, knowing you’re getting trusted brands and expert craftsmanship.

National – Tapered Roller Bearing Cone (Part No.LM501349)

Tapered Roller Bearing Cone

from

$19.99
Manufactured with premium-grade steel, National taper bearing cones feature crowned raceways and rollers to ensure even load distribution.

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
See More

National – Bearing Race (Part No.LM501310)

Bearing Race

from

$8.49
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
See More

National – Bearing Race (Part No.24721)

Bearing Race

from

$21.79
Manufactured with premium-grade steel, National taper bearing cups feature crowned raceways to ensure even load distribution.

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
See More

FAG US – Cup (Part No.LM501310)

Cup

from

$9.99
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.

Product Features:
  • High-precision and High-quality components used in all KITs
  • Coverage of classic and new high-tech solutions for the best system coverage
See More

Top-Rated Rear Differential Cover Gaskets for 1966 Jeep CJ3s

Make a smart move for your 1966 Jeep CJ3 with products all priced from $6.49 to $11.49.

Omix – Differential Cover Gasket; for Dana 25/27/30 (Part No.16502.01)

Differential Cover Gasket; for Dana 25/27/30

from

$6.49
Is your Jeep differential cover leaking? Do you need to seal it up after some work? Omix-ADA has the OE quality differential gaskets you need.

Product Features:
  • Rubber
  • Sold Individually
  • OE Style
  • Direct Fit
See More

Felpro – Axle Housing Cover Gasket Irregular Shaped 10 Bolt Hole Gasket (Part No.RDS 55015)

Axle Housing Cover Gasket Irregular Shaped 10 Bolt Hole Gasket

from

$11.49
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.

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
See More

Top-Rated Differential Brands For Your 1966 Jeep CJ3

When it comes to finding the perfect Differential for your 1966 Jeep CJ3, 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 National and Omix, and more, all known for their exceptional customer ratings (average brand rating of 4.3 stars) and competitive prices, as low as $6.49. Purchasing a Differential from us here at Advance Auto Parts is a smart move for both you and your 1966 Jeep CJ3, providing peace of mind with parts that meet or exceed OEM standards.

Popular National 1966 Jeep CJ3 Differentials

If you’re looking for a top-quality Differential for your 1966 Jeep CJ3, 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 $10.99, you’ll find the perfect Differential for your needs and budget. National Differentials for the 1966 Jeep CJ3 come highly rated, with over 1 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.
Bearing Race
from $10.99
(1)
Bearing Race
“Excellent quality and condition”

Top-Quality Omix 1966 Jeep CJ3 Differentials

For those in search of a high-quality Differential for their 1966 Jeep CJ3, Advance Auto Parts offers a great selection of Omix Differentials. With 1 Omix 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 $6.49, giving you a range of options to suit your budget. Backed by over 1 customer ratings and an average rating of 4.3 stars, Omix Differentials provide both reliability and excellent performance. Choosing a Omix Differential from Advance Auto Parts is a smart investment in your vehicle’s performance and longevity.
Differential Cover Gasket; for Dana 25/27/30
from $6.49
(1)
Differential Cover Gasket; for Dana 25/27/30
“Remove the bolts, drain, spray brake cleaner in there clean it out, bolt back up with the seal, filled her with 75 90 Mobil 1 and good to go .”

FAQs for 1966 Jeep CJ3 Differentials

What are the best-selling Differentials for 1966 Jeep CJ3s?

Out of 29 Differentials that fit 1966 Jeep CJ3s, the following parts are the top sellers:

What’s the price range for 1966 Jeep CJ3 Differentials?

The prices of Differentials for the 1966 Jeep CJ3 range from $2.99 up to $425.99 for the most premium parts.

What is the average price of a Differential for a 1966 Jeep CJ3?

The average price for Differentials for the 1966 Jeep CJ3 is $67.71. 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 CJ3 model years?

Yes, we carry Differentials for 6 model years of Jeep CJ3s between 1959 and 1965. The following model years are the most popular for Differential purchases: 1965, 1964, 1963, 1962, 1961, 1960, and 1959.

What are the cheapest Differentials for my 1966 Jeep CJ3?

The cheapest 1966 Jeep CJ3 Differentials we carry are:

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

Yes. We stock Differentials for 27 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 CJ3?

As of 11/2/25, these are some of the most in-demand types of Differentials for a 1966 Jeep CJ3:

Can I get help with 1966 Jeep CJ3 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 CJ3 Differentials?

Advance Auto Parts keeps returns simple. For new Jeep CJ3 Differentials and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.