1966 Jeep CJ6 Differentials

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Keep Your 1966 Jeep CJ6 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 CJ6 looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Differential Bearings, Differential Oil, and Differential Covers. 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 Valvoline, Driveworks, and Powertrax. For example, Valvoline Differentials start at just $35.99 with an average 4.8 star rating. Driveworks and Powertrax offer similar pricing and quality, backed by strong customer feedback. With over 1,365 reviews and a solid 5 star average, you can shop with confidence knowing other Jeep CJ6 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 CJ6 in peak condition, inside and out.

Essential 1966 Jeep CJ6 Differentials

Yukon Gear – Powr Lok Button Kit For Dana 30, Dana 44 & Chrysler 8.75" (Part No.33536)

Powr Lok Button Kit For Dana 30, Dana 44 & Chrysler 8.75"

from

$67.99
Yukon Ring & Pinion sets give you the confidence of knowing you’re running gears designed for the harshest of conditions. Whether it’s on the street, off-road, or at the track; Yukon ring & pinion sets deliver unrivaled performance & quality. Yukon uses t

Product Features:
  • Powr Lok button kit
  • Fits Dana Spicer 30, 44 and Chrysler 8.75″
See More

Yukon Gear – Replacement Ring Gear Bolt For Model 35, Dana 25, 27, 30 & 44 – 3/8" X 24 (Part No.33038)

Replacement Ring Gear Bolt For Model 35, Dana 25, 27, 30 & 44 - 3/8" X 24

from

$11.99
Replacement ring gear bolt for Model 35, Dana 25, 27, 30 & 44. 3/8″ x 24.

Product Features:
  • Ring gear bolt for Dana Spicer 25, 27, 30, 44 and AMC Model 35
  • 3/8″ x 24 thread
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Powertrax – Lock Right Locker (Part No.2110-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!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!
  • See More

    Driveworks – Taper Bearing Cone (Part No.S-LM-501349)

    Taper Bearing Cone

    from

    $10.99
    Value-priced bearing meets all cataloged application requirements.

    Product Features:
    • Brand may vary by location
    See More

    USA Standard Gear – Steel Spool For Dana 44 With 30 Spline Axles, 3.73 & Down (Part No.59013)

    Steel Spool For Dana 44 With 30 Spline Axles, 3.73 & Down

    from

    $282.99
    Product Features:
    • Fits Chrysler Dana Spicer 44 with 30 spline axles
    • 3.73 and down ratio only
    • Provides 100% traction to both wheels at all times
    • Not recommended for street driven vehicles
    See More

    Yukon Gear – Replacement Trail Repair Kit For Dana 30 And 44 With 1350 Size U/Joint And Straps (Part No.32280)

    Replacement Trail Repair Kit For Dana 30 And 44 With 1350 Size U/Joint And Straps

    from

    $481.99
    Yukon replacement trail repair kit for Dana 30 and 44 with 1350 size U/joint and straps. This kit comes with a yoke, U/joint, pinion seal, U/bolt or strap kit, pinion nut, and pinion nut washer (if applicable).

    Product Features:
    • Fits Dana Spicer 30 and 44
    • 1350 u-joint size
    • Kit includes yoke, U-joint, pinion seal, pinion nut and washer, straps, bolts and threadlocker
    See More

    Yukon Gear – Replacement Standard Open Carrier Case For Dana 44, 3.92 & Up (Part No.20028)

    Replacement Standard Open Carrier Case For Dana 44, 3.92 & Up

    from

    $149.99
    Yukon replacement standard open carrier case for Dana 44, 3.92 & up, 2-3/8″ tall.

    Product Features:
    • Standard open carrier case
    • Fits Dana Spicer 44 with 30 spline axles
    • 3.92 and up ratio only
    • Does not include spider gears
    See More

    Yukon Gear – Replacement Cover Gasket For Dana 30 (Part No.23003)

    Replacement Cover Gasket For Dana 30

    from

    $12.99
    Product Features:
    • Cover gasket
    • Fits Dana Spicer 30
    See More

    Yukon Gear – Drive Flange Cap For Dana 44 (Part No.32134)

    Drive Flange Cap For Dana 44

    from

    $109.99
    Product Features:
    • Drive flange cap
    • Fits Dana 44
    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

    USA Standard Gear – Bearing Kit For Dana 30 Front (Part No.58033)

    Bearing Kit For Dana 30 Front

    from

    $153.99
    This kit uses Koyo bearings and races along with all high quality small parts. kit includes carrier bearings and races, pinion bearings and races, pinion seal, crush sleeve (if applicable), oil baffles and slingers (if applicable), marking compound and brush. USA Standard Gear does extensive research for each application to make sure your kit will arrive with all the correct parts you need to install your ring & pinion set.

    Product Features:
    • Fits Dana Spicer 30 front
    • Uses Koyo bearings and races
    • Included are carrier bearings and races, pinion bearings and races, pinion seal, pinion nut, marking compound and brush.
    See More

    Motive Gear – Differential Carrier Shim Kit (Part No.1116)

    Differential Carrier Shim Kit

    from

    $18.99


    Product Features:
    • CARRIER SHIM – DANA 30
    See More

    Crown Auto Jeep Replacmnt – OE Replacement, Single (Part No.J4004913)

    OE Replacement, Single

    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.

    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

    Yukon Gear – The Carrier Bearing Puller (Part No.56034)

    The Carrier Bearing Puller

    from

    $689.99
    The Yukon carrier bearing Puller works with an impact gun to quickly and safely remove carrier bearings without damaging them. This unit comes with a handy bench top stand and works with up to most standard one ton applications. This unit is works with differentials up to one-ton applcations. It is not compatible with Dana 70HD, Dana 80, 10.25″ & 10.5″ Ford, or GM & Chrysler 11.5″ differentials.

    Product Features:
    • Carrier bearing puller
    • Works with an impact gun to safely and easliy remove carrrier bearings
    • Not compatible with Dana 70HD, Dana 80, Ford 10.25″ and 10.5″ or Gm and Chrysler 11.5″ applications
    See More

    Yukon Gear – Dura Grip For Dana 44, 30 Spline, 3.92 & Up (Part No.26027)

    Dura Grip For Dana 44, 30 Spline, 3.92 & Up

    from

    $809.99
    The Yukon Dura Grip provides aggressive yet smooth traction to give you the confidence & performance you need. Get longer life and better traction with the heavy duty Yukon Dura Grip Positraction. The Yukon Dura Grip uses a nodular case and forged 4320 internals for added strength along with composite clutches for high performance and long life. All units are Rebuildable and many offer upgrades to increase aggressiveness for racing applications. Each unit carries a one year warranty against defects.

    Product Features:
    • Fits Dana Spicer 44 with 30 spline axles
    • 3.92 ratio and up only
    • 4-spring, clutch style positraction
    • Internal gears are manufactured using forged 4320 steel and cut to provide stronger teeth
    • Fully rebuildable
    • Assembled in the USA
    See More

    Yukon Gear – O-Ring For Toyota & Dana 44 Zip Locker Seal Housing (Part No.34004)

    O-Ring For Toyota & Dana 44 Zip Locker Seal Housing

    from

    $11.29
    Product Features:
    • O-ring for seal housing
    • Fits Dana Spicer 44 and Toyota 8″ and V6
    See More

    Yukon Gear – Dana 30 & Dana 44 Power Lok Bolt, Left Hand, & 8.75" Chrysler & 55P (Part No.33234)

    Dana 30 & Dana 44 Power Lok Bolt, Left Hand, & 8.75" Chrysler & 55P

    from

    $26.99
    Dana 30 & Dana 44 Power Lok bolt, left hand, & 8.75″ Chrysler & 55P.

    Product Features:
    • Power Lok case bolt for Dana Spicer 30, Dana Spicer 44, Chrysler 8.75″ and 1955-1964 GM passenger car
    • Left hand thread
    See More

    Schaeffler – Shaft Seal (Part No.SS2633)

    Shaft Seal

    from

    $28.99
    Our wheel seals are engineered using only the highest-quality materials to meet vehicle manufacturer specificatons. We work with suppliers to design seals that meet FAG’s quality standards. Seals are designed to protect wheel end components from contamination – such as dirt, dust, and moisture – and prevent the loss of grease over the life of the bearing. The specifications for wheel seals are very demanding, and the type required depends on the specific application, position and vehicle class.

    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

    Yukon Gear – Replacement Pinion Nut For Dana 25, 27, 30, 36, 44, 53 & GM 7.75" (Part No.33143)

    Replacement Pinion Nut For Dana 25, 27, 30, 36, 44, 53 & GM 7.75"

    from

    $6.99
    Yukon Ring & Pinion sets give you the confidence of knowing you’re running gears designed for the harshest of conditions. Whether it’s on the street, off-road, or at the track; Yukon ring & pinion sets deliver unrivaled performance & quality. Yukon uses t

    Product Features:
    • Pinion nut for Dana Spicer 25, 27, 30, 44, 50 and GM 7.75″
    • 3/4″ x 16 thread
    See More

    Yukon Gear – Pinion Install Kit For Dana 25 Differential (Part No.13012)

    Pinion Install Kit For Dana 25 Differential

    from

    $289.99
    Yukon Pinion installation kits are a terrific solution for gear installation on lower mileage vehicles where the carrier bearings & races can be reused. This kit uses Timken bearings and races along with a high quality pinion seal and small parts. Included in this kit are the pinion bearings and races, pilot bearing (if applicable), crush sleeve (if applicable), complete pinion shim kit, pinion nut, thread locker, and marking compound with brush. Yukon does extensive research for each application to make sure your kit will arrive with all the correct parts you need to install your pinion gear.

    Product Features:
    • Fits Dana Spicer 25
    • Included are pinion bearings and races, pinion seal, pinion nut, complete pinion shim kit, and marking compound with brush.
    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

    Yukon Gear – Dana 30 / 44 Roll Pin Replacement (Part No.33312)

    Dana 30 / 44 Roll Pin Replacement

    from

    $12.99
    Dana 30 & Dana 44 roll PIN, 0.235″ DIA, for cross pin shaft.

    Product Features:
    • Roll pin for Dana Spicer 30 and Dana Spicer 44
    • 0.235″ diameter
    See More

    Powertrax – No-Slip Traction System (Part No.9204302700)

    No-Slip Traction System

    from

    $505.99
    For vehicles that are driven daily, the Powertrax No-Slip Traction System is the latest design in quiet traction-adding differential technology. It combines the automatic street-friendly smooth operation of a limited-slip differential with the traction performance of a locking differential. The Powertrax No-Slip locker easily installs in to your differential carrier using basic tools and without affecting your ring and pinion settings. 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!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!
  • See More

    Yukon Gear – Dana 25, 27, 30, 44, Model 20 And Model 35, GM 7.5", 8.2", 8.5", 12P, 12T, C9.25 Rear Cover Bolt (Part No.33286)

    Dana 25, 27, 30, 44, Model 20 And Model 35, GM 7.5", 8.2", 8.5", 12P, 12T, C9.25 Rear Cover Bolt

    from

    $9.99
    5/16″-18 cover bolt, Dana Spicer 25, 27, 30 and 44, AMC Model 20 and Model 35, Chrysler 9.25 rear, GM 7.5″, 7.625″, 8.2″, 8.5″, 12 bolt passenger car and truck.

    Product Features:
    • Cover bolt for Dana Spicer 25, 27, 30 and 44, AMC Model 20 and Model 35, GM 7.5″, 7.625″, 8.2″, 8.5″ and 12 bolt passenger car and truck.
    • 1/2″ head
    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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    Motive Gear – Differential Gear Install Kit (Part No.D44IK)

    Differential Gear Install Kit

    from

    $61.99


    Product Features:
    • MINI INSTALL KIT DANA 44
    See More

    Yukon Gear – Dana 28 & Dana 30 Pinion Gear Thrust Washer (Part No.33285)

    Dana 28 & Dana 30 Pinion Gear Thrust Washer

    from

    $7.99
    Dana 28 & Dana 30 pinion gear Thrust washer. Also fits AMC Model 35 with 1.560″ side gear bore only.

    Product Features:
    • Pinion gear thrust washer for Dana Spicer 25, 27 and 30
    See More

    USA Standard Gear – Master Overhaul Kit for the Dana 44 Differential with 30 Spline (Part No.37008)

    Master Overhaul Kit for the Dana 44 Differential with 30 Spline

    from

    $289.99
    USA Standard Master Overhaul kits let you finish your install with confidence. This kit uses Koyo bearings and races. Included are carrier bearings and races, pinion bearings and races, pinion seal, complete shim kit, ring gear bolts, pinion nut, crush sleeve (if applicable), oil baffles and slingers (if applicable), threading locking compound, marking compound with brush and gasket.

    Product Features:
    • Fits standard rotation Dana Spicer 44 front
    • Uses Koyo bearings and races
    • Included are carrier bearings and races, pinion bearings and races, pinion seal, axle seals, complete shim kit, ring gear bolts, pinion nut, oil baffles and slingers, thread locker, marking compound with brush and gasket.
    See More

    Most Popular Differential Bearings for 1966 Jeep CJ6s

    Enhance your 1966 Jeep CJ6 with one of the 2 Differential Bearings we have in stock, starting at just $10.99.

    Driveworks – Taper Bearing Cone (Part No.S-LM-501349)

    Taper Bearing Cone

    from

    $10.99
    Value-priced bearing meets all cataloged application requirements.

    Product Features:
    • Brand may vary by location
    See More

    National – Multi-Purpose Bearing (Part No.206)

    Multi-Purpose Bearing

    from

    $24.99
    Product Features:
    • BUILT TO LAST: Advanced heat treatment process for strength
    • PREMIUM MATERIALS: Precision manufactured using premium-grade steel for lasting performance and extended bearing life
    • RELIABLE PERFORMANCE: Element size and quantity are engineered to meet or exceed the load rating of OE bearings
    • 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

    Best-Selling 1966 Jeep CJ6 Differential Oil

    Upgrade your CJ6 with one of our 6 best-selling Differential Oil, earning an average 5 stars rating across 446 reviews.

    Valvoline – MaxLife Multi-Vehicle Automatic Transmission Fluid, 1 Gallon (Part No.773775)

    MaxLife Multi-Vehicle Automatic Transmission Fluid, 1 Gallon

    from

    $35.99
    Valvoline MaxLife Multi-Vehicle ATF is a full-synthetic formulation with advanced additives to prevent the major causes of transmission breakdown and help extend transmission life.  Developed to help prevent leaks, maximize transmission performance, reduce transmission wear, and maintain smooth shifting longer than conventional fluids. It is suitable for use in a broad range of ATF applications including most Ford, GM, Toyota, Honda, Nissan, Hyundai, BMW, Mercedes, Volvo, VW & Audi. Recommended for use in the following applications: GM DEXRON-II, DEXRON-III, DEXRON-VI, Ford MERCON LV, Toyota/Lexus Type T, T-II, T-IV, WS, Honda/Acura, ATF-Z1, Nissan/Infiniti Matic-D, Matic-J, Matric-K, Matic-S, Hyundai/Kia SP-II, SP-III, SP-IV, SPH-IV, BMW 7045E, ETL 8072B, LA2634, LT71141, Allison C-4, Mercedes Benz NAG-1, Volvo 1161521, 1161540, 97340, 1273.41, and VW/Audi G-052-025-A2, G-052-162-A1. For CVT applications Valvoline recommends Valvoline Full Synthetic CVT Fluid.

    Product Features:
    • Formulated with full-synthetic base oils and long life friction modifiers to help improve smooth shifting, eliminate slippage and shudder, prevent clutch wear and improve drivability longer than conventional fluids
    • High-performance seal conditioners maintain and preserve the elasticity of seals to help prevent leaks in high mileage transmissions
    • Developed with anti-wear technology to help improve transmission durability
    • Engineered with a proprietary blend of base oils and advanced additives to provide better oil flow at low temperatures and greater film protection at higher temperatures
    See More

    Yukon Gear – 3 Qt – 80W90 Conventional Gear Oil With Posi Additive (Part No.15003)

    3 Qt - 80W90 Conventional Gear Oil With Posi Additive

    from

    $57.99
    3 Qt. Penzoil 80W90 conventional gear Oil. W/ bottle of Posi additive.

    Product Features:
    • Includes three quarts of conventional oil and one 4oz bottle of Yukon positraction additive
    See More

    Yukon Gear – 3 Qt – Penzoil 80W90 Conventional Gear Oil (Part No.15002)

    3 Qt - Penzoil 80W90 Conventional Gear Oil

    from

    $44.99
    3 Qt. Penzoil 80W90 conventional gear Oil.

    Product Features:
    • Includes three quarts of conventional 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

    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-Quality Differential Covers for 1966 Jeep CJ6s

    Choose a high-quality OEM or aftermarket Differential Cover for Jeep CJ6s and enjoy top-notch performance from $52.99.

    Yukon Gear – Replacement Chrome Cover For Dana 44 (Part No.32004)

    Replacement Chrome Cover For Dana 44

    from

    $67.99
    0.080″ thick Chrome replacement cover for Dana 44.

    Product Features:
    • Fits standard rotation Dana Spicer 44
    • Chrome
    See More

    Yukon Gear – Replacement Chrome Cover For Dana 30 Standard Rotation (Part No.32003)

    Replacement Chrome Cover For Dana 30 Standard Rotation

    from

    $52.99
    Product Features:
    • Fits standard rotation Dana Spicer 30
    • Chrome
    See More

    Yukon Gear – Steel Cover For Dana 44 Standard Rotation (Part No.32319)

    Steel Cover For Dana 44 Standard Rotation

    from

    $129.99
    Product Features:
    • Fits standard rotation Dana Spicer 44
    • Steel
    See More

    Yukon Gear – Aluminum Girdle Replacement Cover For Dana 44 Ta HD (Part No.32110)

    Aluminum Girdle Replacement Cover For Dana 44 Ta HD

    from

    $359.99
    Aluminum Girdle replacement cover for Dana 44 TA HD.

    Product Features:
    • Fits standard rotation Dana Spicer 44
    • Aluminum girdle cover
    See More

    Yukon Gear – Differential (Part No.29101)

    Differential

    from

    $271.99
    Differential

    Yukon Gear – Polished Aluminum Replacement Cover For Dana 30 Standard Rotation (Part No.32021)

    Polished Aluminum Replacement Cover For Dana 30 Standard Rotation

    from

    $201.99
    Product Features:
    • Fits standard rotation Dana Spicer 30
    • Finned polished aluminum
    See More

    Yukon Gear – Steel Cover For Dana 30 Standard Rotation Front (Part No.32316)

    Steel Cover For Dana 30 Standard Rotation Front

    from

    $138.99
    Product Features:
    • Fits standard rotation Dana Spicer 30
    • Steel
    See More

    Our Top Pick for a 1966 Jeep CJ6 Rear Differential Cover Gasket

    Invest in a durable Rear Differential Cover Gasket for your 1966 Jeep, knowing you’re getting trusted brands and expert craftsmanship.

    Yukon Gear – Replacement Cover Gasket For Dana 30 (Part No.23003)

    Replacement Cover Gasket For Dana 30

    from

    $12.99
    Product Features:
    • Cover gasket
    • Fits Dana Spicer 30
    See More

    Our Differential Axle Shafts for 1966 Jeep CJ6s

    Make a smart move for your 1966 Jeep CJ6 with our Differential Axle Shaft for $1,337.99.

    USA Standard Gear – 4340 Axle Kit For ’82-’83 CJ5 & ’82-’86 CJ7, Dana 30, 27 Spline With Super Joints (Part No.35129)

    4340 Axle Kit For '82-'83 CJ5 & '82-'86 CJ7, Dana 30, 27 Spline With Super Joints

    from

    $1337.99
    Product Features:
    • 27 spline inner and outer
    • Fits Dana Spicer 30 in 1982-1986 Jeep CJ
    • Includes inner and outer 4340 Chromoly axles and Yukon Super Joints
    See More

    Top-Rated Differential Brands For Your 1966 Jeep CJ6

    When it comes to finding the perfect Differential for your 1966 Jeep CJ6, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 13 trusted brands. We carry the most popular Differential brands including Valvoline, Powertrax, and Driveworks, and more, all known for their exceptional customer ratings (average brand rating of 4.8 stars) and competitive prices, as low as $10.99. Purchasing a Differential from us here at Advance Auto Parts is a smart move for both you and your 1966 Jeep CJ6, providing peace of mind with parts that meet or exceed OEM standards.

    Popular Valvoline 1966 Jeep CJ6 Differentials

    If you’re looking for a top-quality Differential for your 1966 Jeep CJ6, Advance Auto Parts has exactly what you need with our selection of Valvoline Differentials. We have 1 Valvoline Differentials in stock for this fitment, all known for their durability and precision fit. With prices starting at just $35.99, you’ll find the perfect Differential for your needs and budget. Valvoline Differentials for the 1966 Jeep CJ6 come highly rated, with over 446 customer reviews and an impressive average rating of 4.8 stars. Choosing a Valvoline Differential from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.
    MaxLife Multi-Vehicle Automatic Transmission Fluid, 1 Gallon
    from $35.99
    (446)
    MaxLife Multi-Vehicle Automatic Transmission Fluid, 1 Gallon
    “Good quality great price”

    Top-Quality Powertrax 1966 Jeep CJ6 Differentials

    For those in search of a high-quality Differential for their 1966 Jeep CJ6, Advance Auto Parts offers a great selection of Powertrax Differentials. With 1 Powertrax 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 $350.99, giving you a range of options to suit your budget. Backed by over 1 customer ratings and an average rating of 4.7 stars, Powertrax Differentials provide both reliability and excellent performance. Choosing a Powertrax Differential from Advance Auto Parts is a smart investment in your vehicle’s performance and longevity.
    Lock Right Locker
    from $350.99
    (1)
    Lock Right Locker
    “The fastest mail order i have received.”

    FAQs for 1966 Jeep CJ6 Differentials

    What are the best-selling Differentials for 1966 Jeep CJ6s?

    Out of 200 Differentials that fit 1966 Jeep CJ6s, the following parts are the top sellers:

    What’s the price range for 1966 Jeep CJ6 Differentials?

    The prices of Differentials for the 1966 Jeep CJ6 range from $2.99 up to $1,566.99 for the most premium parts.

    What is the average price of a Differential for a 1966 Jeep CJ6?

    The average price for Differentials for the 1966 Jeep CJ6 is $228.28. 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 CJ6 model years?

    Yes, we carry Differentials for 15 model years of Jeep CJ6s between 1959 and 1975. The following model years are the most popular for Differential purchases: 1975, 1974, 1973, 1972, 1971, 1970, 1969, 1968, and 1967.

    What are the cheapest Differentials for my 1966 Jeep CJ6?

    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 CJ6?

    As of 3/1/26, these are some of the most in-demand types of Differentials for a 1966 Jeep CJ6:

    Can I get help with 1966 Jeep CJ6 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 CJ6 Differentials?

    Advance Auto Parts keeps returns simple. For new Jeep CJ6 Differentials and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.