1978 Jeep J20 Differentials

Essential 1978 Jeep J20 Differentials

Powertrax – No-Slip Traction System (Part No.9204443020)

No-Slip Traction System

from

$553.99
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!
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    Motive Gear – Differential Mini Spool (Part No.MSD44-30)

    Differential Mini Spool

    from

    $101.99


    Product Features:
    • MINI SPOOL – DANA 44, 30 SPL.
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    Rugged Ridge – Heavy Duty Differential Cover (Part No.16595.44)

    Heavy Duty Differential Cover

    from

    $271.99
    Made from either 3/8 inch cast steel or 5/16 inch stamped steel, these heavy-duty covers are designed to protect your differential and all its working parts for as long as you own your vehicle.

    Product Features:
    • Painted Black Inside and Out
    • 3/8 in. Cast Steel
    • Reinforced Protection For Fill Plug
    • Hardware Included
    • Limited 5 Year Warranty
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    Motive Gear – Differential Pinion Seal (Part No.5778)

    Differential Pinion Seal

    from

    $9.49
    Motive Gear offers some of the toughest drive train components on the market today. If you are looking for the largest line of performance ring and pinion gear options available with gear sets in a wide range of ratios for nearly every application, both o
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    Powertrax – Lock Right Locker (Part No.1710-LR)

    Lock Right Locker

    from

    $368.99
    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

    Spicer – CARRIER CASE L/S (Part No.708013)

    CARRIER CASE L/S

    from

    $1290.99
    CARRIER CASE L/S

    Felpro – Axle Housing Cover Gasket (Part No.RDS 6629)

    Axle Housing Cover Gasket

    from

    $6.49
    Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

    Product Features:
    • 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
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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
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    Victor Reinz – Differential Cover Gasket (Part No.71-14868-00)

    Differential Cover Gasket

    from

    $8.79
    With Victor Reinz gaskets, you can be sure you are getting sealing solutions that deliver OE quality gasket technology and engineering. That is because Victor Reinz is an original equipment supplier and the trusted choice of manufacturers the world over, offering broad coverage for foreign and domestic cars and trucks. In Victor Reinz gasket sets, you get the right combination of components needed for fast, long-lasting repairs.

    Product Features:
    • Choosing Victor Reinz assures getting OE quality parts in gaskets sets that have the coverage, contents, packaging and electronic cataloging to best meet the needs of the aftermarket.
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    Motive Gear – Differential Pinion Shim Kit (Part No.1113)

    Differential Pinion Shim Kit

    from

    $15.99


    Product Features:
    • PINION SHIM – DANA 44
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    Powertrax – No-Slip Traction System (Part No.9204603500)

    No-Slip Traction System

    from

    $565.99
    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

    Richmond Gear – RngPnn (Part No.79-0013-1)

    RngPnn

    from

    $538.99
    RngPnn

    Motive Gear – Differential Carrier Shim Kit (Part No.1106)

    Differential Carrier Shim Kit

    from

    $18.99


    Product Features:
    • CARRIER SHIM-DANA 60 & 70
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    National – Bearings (Part No.31594)

    Bearings

    from

    $29.99
    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

    Motive Gear – Differential Pinion Shim Kit (Part No.1118)

    Differential Pinion Shim Kit

    from

    $6.49


    Product Features:
    • DANA PRELOAD SHIMS (D60 & D70)
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    Motive Gear – Drive Shaft Pinion Yoke (Part No.MG1310-6010)

    Drive Shaft Pinion Yoke

    from

    $117.99


    Product Features:
    • PINION YOKE
    • CAST:1310
    • U-BOLT STYLE
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    National – Taper Bearing Cup (Part No.14276)

    Taper Bearing Cup

    from

    $10.99
    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+
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    Motive Gear – Differential Spool (Part No.FSD60-35H)

    Differential Spool

    from

    $186.99


    Product Features:
    • FULL SPOOL DANA 60 35 SPLINE 4.10 & DOWN
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    Motive Gear – Differential Carrier Gear Kit (Part No.706027XR)

    Differential Carrier Gear Kit

    from

    $102.99


    Product Features:
    • DANA-44 OPEN INTERNAL KIT
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    Spicer – Differential Ring and Pinion (Part No.706033-3X)

    Differential Ring and Pinion

    from

    $863.99
    All Spicer ring and pinion gears are designed and tested to meet original equipment specifications. When you purchase genuine Spicer ring and pinion gear sets, you can be confident the ring and pinion set will meet or exceed the exact Dana standards that original equipment manufacturers have relied upon for more than a hundred years.
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    Needa Parts – Standard Engine Oil Drain Plug: 7/8 " -16 Thread, 1-1/8 " Head, 1 Pack (Part No.090-018)

    Standard Engine Oil Drain Plug: 7/8 " -16 Thread, 1-1/8 " Head, 1 Pack

    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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    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
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    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
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    Motive Gear – Differential Bearing Kit – Koyo (Part No.RA28LR)

    Differential Bearing Kit - Koyo

    from

    $112.99
    Motive Gear Differential Bearing Kits Include Front & Rear Pinion Bearing, Pinion Seal, Carrier Bearings, Pilot Bearing Where Applicable, Gear Marking Compound, Crush Sleeve, Pinion Nut, Brush, Thread Locking Compound And Cover Gasket Or Rtv

    Product Features:
    • DANA-44 MED BRG & SEAL KIT 1968-UP
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    Dorman – Ring and Pinion Bearing Installation Kit (Part No.697-106)

    Ring and Pinion Bearing Installation Kit

    from

    $267.99
    This differential bearing kit includes all necessary installation components for a differential ring and pinion on certain vehicle years, makes and models.

    Product Features:
    • Convenient kit – this ring and pinion bearing installation kit includes all necessary components for a complete repair on certain vehicle applications
    • Related repair – smart to have on hand when installing a differential ring and pinion
    • Durable construction – built for reliable longevity, free of defects in materials and workmanship
    • Trustworthy quality – backed by team of designers and engineers in the United States
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    National – Bearings (Part No.382S)

    Bearings

    from

    $18.79
    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

    Driveworks – Tapered Roller Bearing (Part No.S-28622)

    Tapered Roller Bearing

    from

    $10.29
    Product Features:
    • Brand may vary by location
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    National – Bearings (Part No.25590)

    Bearings

    from

    $30.99
    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

    1978 Jeep J20 Differentials

    Maybe you’re in the middle of a full rebuild of that 1978 Jeep J20. Maybe you just need a couple of Differentials. Either way, Advance Auto Parts has 89 different Differentials in our inventory ranging from $3.99 to $1,290.99. That means you can find the exact parts or products you need to keep that 1978 Jeep J20 running smoothly.

    Differentials are only as good as their brand. We stock 15 different brands to make sure you have plenty of trusted parts to choose from for your 1978 Jeep J20. Yukon Gear, Felpro, and National are just some of the brands we stock. Search for brands you know or compare prices and reviews to help you decide!

    We know you’ll find the perfect Differentials for your 1978 Jeep J20, but don’t take our word for it – read our customer ratings and reviews and buy with confidence. Out of the 66 reviews in this category, some of the top rated parts include Differential Ring and Pinion with 4.0 stars and Differential Master Bearing Kit – Timken with 1.0 stars.

    So if you’re in the market for aftermarket Differentials to keep your 1978 Jeep J20 rolling for years to come, look no further. Shop online and have your products shipped direct to your door, or pick up at the nearest Advance Auto Parts location today!

    Differentials Brands To Make Your 1978 Jeep J20 Last

    Simple repair, complete replacement, or a full rebuild. No matter the job, your 1978 Jeep J20 demands trusted brand parts and products to keep it running. Many trusted brands of Differentials make up Advance Auto Parts’ inventory, and all are ready to help make your J20 the best it can be. Be sure to browse some of our top Differentials brands and parts.

    Popular National Differentials

    We carry National parts in our stock across Rear Differential Pinion Bearings and Differential Bearings categories, plus more. For a 1978 Jeep J20, our most popular National Differentials include:
    Taper Bearing Cup
    from $10.99
    (1)
    Taper Bearing Cup
    Rear Differential Pinion Bearings
    Bearings
    from $9.99
    (4)
    Bearings
    Differential Bearings

    Top 1978 Jeep J20 Differentials from Felpro

    Felpro products are another trusted brand when it comes to Differentials for your 1978 Jeep J20. Popular Felpro parts include:
    Axle Housing Cover Gasket
    from $6.49
    (10)
    Axle Housing Cover Gasket
    Front Housing Cover Gaskets
    DIFFERENTIAL GASKET
    from $8.29
    (4)
    DIFFERENTIAL GASKET
    Front Housing Cover Gaskets

    FAQs for 1978 Jeep J20 Differentials

    What are the most purchased Differentials for the 1978 Jeep J20?

    Out of 89 Differentials for the 1978 Jeep J20, the most popular in our inventory are:
    3 Qt - Penzoil 80W90 Conventional Gear Oil
    from $44.99
    This product is not rated
    3 Qt – Penzoil 80W90 Conventional Gear Oil
    Differential Oil
    Bearings
    from $30.99
    This product is not rated
    Bearings
    Differential Bearings
    Drive Shaft Pinion Yoke
    from $117.99
    This product is not rated
    Drive Shaft Pinion Yoke
    Differential Pinion Yokes

    What are the top-rated 1978 Jeep J20 Differentials?

    Top-rated Differentials for your 1978 Jeep J20 based on customer reviews/ratings are:
    Differential Ring and Pinion
    from $193.99
    (1)
    Differential Ring and Pinion
    “Hard to find items with a low price compared to others in the country, and shipping costs where the best.”
    Differential Master Bearing Kit - Timken
    from $168.99
    (1)
    Differential Master Bearing Kit – Timken
    “This was supposed to be an exact fit according to the website for a1999 dodge ram 1500 with 4wd. The bearings look to be correct but the crush sleeve,”
    Differential Master Bearing Kit - Koyo
    from $143.99
    (1)
    Differential Master Bearing Kit – Koyo
    “I bought this kit to have my front axle regeared. The shop said that this kit was missing the axle seals, crush sleeve for the pinion, and didn’t have”