1979 GMC Jimmy Differentials

Essential 1979 GMC Jimmy Differentials

Pro-King – Differential Internal Nest Kit (Part No.741A717)

Differential Internal Nest Kit

from

$184.99
Pro-King is the leading supplier of transmission and driveline products in the aftermarket.

Product Features:
  • All products are designed to meet or exceed OE quality, form, fit and funtion.
See More

National – Bearings (Part No.HM803146)

Bearings

from

$47.49
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

Pro-King – Differential Axle Bearing (Part No.741C278)

Differential Axle Bearing

from

$12.99
Pro-King is the leading supplier of transmission and driveline products in the aftermarket.

Product Features:
  • All products are designed to meet or exceed OE quality, form, fit and funtion.
See More

Pro-King – Differential Pinion Gear Washer (Part No.742G216)

Differential Pinion Gear Washer

from

$2.59
Pro-King is the leading supplier of transmission and driveline products in the aftermarket.

Product Features:
  • All products are designed to meet or exceed OE quality, form, fit and funtion.
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

Dorman – Rear Axle Shaft, Left or Right (Part No.630-102)

Rear Axle Shaft, Left or Right

from

$215.99
Axle shaft damaged or bearings worn out? This axle shaft directly replaces the original equipment on certain vehicles, complete with all necessary application-specific installation components.

Product Features:
  • Direct replacement – this axle shaft replaces the original equipment on specific vehicle years, makes and models
  • Complete kit – each shaft includes critical installation hardware and components needed for specific vehicle applications
  • Durable construction – designed to rigorous standards and tested to ensure performance
  • Trustworthy solution – backed by team of engineers and quality control specialists in the United States
See More

Motive Gear – Differential Spool (Part No.FSD44-30)

Differential Spool

from

$193.99


Product Features:
  • FULL SPOOL-DANA 44, 30 SPL. 3.92-UP
See More

Motive Gear – Differential Carrier (Part No.GM7.6E)

Differential Carrier

from

$138.99
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
See More

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!
  • See More

    National – Multi Purpose Seal (Part No.8460N)

    Multi Purpose Seal

    from

    $12.29
    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:
    • Low swell in hydrocarbon fluids
    • Design type: spring loaded; multi-lip
    • Provides good low temperature capability
    • Temperature range: -40°F to 225°F; -40°C to 107°C
    • Delivers quality and reliable performance for every type of repair
    See More

    ATP – Remanufactured Front Differential Assembly (Part No.111503)

    Remanufactured Front Differential Assembly

    from

    $3289.99
    Brand new units are no longer available. ATP’s fully remanufactured differentials offer the best alternative to bench rebuilding or buying used. They are carefully inspected and totally reconditioned to meet original specifications and include new bearings and seals. Our units are ready to install, just add oil.

    Product Features:
    • Ready to install, just add oil
    • Totally reconditioned
    • New bearings
    See More

    Powertrax – Lock Right Locker (Part No.1931-LR)

    Lock Right Locker

    from

    $444.99
    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

    Motive Gear – Differential Ring and Pinion (Part No.D44-392)

    Differential Ring and Pinion

    from

    $229.99


    Product Features:
    • DANA 44 R/P 3.92 STD MG
    See More

    Felpro – Differential Cover Gasket (Part No.RDS 55028-1)

    Differential Cover Gasket

    from

    $9.99
    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
    See More

    Motive Gear – Differential Pinion Shim Kit (Part No.1100)

    Differential Pinion Shim Kit

    from

    $7.49
    High-quality Differential Component Shim

    Product Features:
    • SHIM KIT FITS-8.25-F7.5-AMC20-GM0
    See More

    National – Shaft Repair Sleeve (Part No.99138)

    Shaft Repair Sleeve

    from

    $27.49
    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.

    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
    See More

    Motive Gear – Differential Carrier Gear Kit (Part No.GM9.5BI)

    Differential Carrier Gear Kit

    from

    $176.99


    Product Features:
    • GM9.5″ INTERNAL KIT (OPEN) 33 SPL. FRONT & REAR
    See More

    Dorman – Help – Pinion Crush Sleeves (Part No.81057)

    Pinion Crush Sleeves

    from

    $5.29
    This differential crush sleeve is designed to match the fit and function of the original sleeve on specified vehicles, and is engineered for durability and reliable performance.

    Product Features:
    • Direct replacement – this differential crush sleeve is designed to match the fit and function of the original sleeve on specified vehicles
    • Required replacement – when servicing the differential
    • Durable construction – this part is made from quality materials to ensure reliable performance and long service life
    • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
    See More

    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
    See More

    Pro-King – Differential Cover Plug (Part No.742G484)

    Differential Cover Plug

    from

    $6.59
    Pro-King is the leading supplier of transmission and driveline products in the aftermarket.

    Product Features:
    • All products are designed to meet or exceed OE quality, form, fit and funtion.
    See More

    Dorman – Help – Differential Shaft Lock Bolt (Part No.81048)

    Differential Shaft Lock Bolt

    from

    $5.99
    This differential pinion shaft lock bolt is designed to match the fit and function of the original part on specified vehicles. Made of quality materials, it is engineered for reliable performance.

    Product Features:
    • Direct replacement – this differential pinion shaft lock bolt matches the fit and function of the factory part on specified years, makes and models
    • Ideal solution – this bolt is a reliable replacement for an original part that is missing or has failed due to fatigue
    • Durable construction – this part is made from quality materials to ensure reliable performance and long service life
    • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
    See More

    Pro-King – Differential Ring Gear Bolt (Part No.741B935)

    Differential Ring Gear Bolt

    from

    $2.49
    Pro-King is the leading supplier of transmission and driveline products in the aftermarket.

    Product Features:
    • All products are designed to meet or exceed OE quality, form, fit and funtion.
    See More

    Motive Gear – Differential Gear Install Kit (Part No.GM7.5IK)

    Differential Gear Install Kit

    from

    $49.99


    Product Features:
    • MINI INSTALL KIT GM 7.5
    See More

    Motive Gear – Differential Carrier Gear Kit (Part No.706027XR)

    Differential Carrier Gear Kit

    from

    $102.99


    Product Features:
    • DANA-44 OPEN INTERNAL KIT
    See More

    Pro-King – Differential Cross Shaft (Part No.742G673)

    Differential Cross Shaft

    from

    $28.49
    Pro-King is the leading supplier of transmission and driveline products in the aftermarket.

    Product Features:
    • All products are designed to meet or exceed OE quality, form, fit and funtion.
    See More

    Dorman – Ring And Pinion Bearing Installation Kit (Part No.697-100)

    Ring And Pinion Bearing Installation Kit

    from

    $195.99
    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
    See More

    Motive Gear – Differential Mini Spool (Part No.MS7.5-28)

    Differential Mini Spool

    from

    $101.99


    Product Features:
    • MINI SPOOL GM 7 1/2″ 28 SPLINE
    See More

    Spectre – GM Diff Cover 12 Bolt (Part No.6076)

    GM Diff Cover 12 Bolt

    from

    $64.99
    Spectre’s 12 bolt Differential Covers feature a triple chrome plated steel construction. Designed to perform as well as they look, these covers fit a variety of vehicles. Use the Spectre application search for vehicle specific lookup. Includes 12 SAE standard chrome bolts for installation. You’ll need to supply your own bolts if your application requires metric bolts.

    Product Features:
    • Triple chrome plated steel
    • Gasket included
    • 12 bolt design
    • 12 chrome 5/16 inch -18 x 3/4 inch differential cover bolts included
    See More

    1979 GMC Jimmy Differentials

    Maybe you’re in the middle of a full rebuild of that 1979 GMC Jimmy. Maybe you just need a couple of Differentials. Either way, Advance Auto Parts has 169 different Differentials in our inventory ranging from $0.91 to $658.99. That means you can find the exact parts or products you need to keep that 1979 GMC Jimmy running smoothly.

    Differentials are only as good as their brand. We stock 10 different brands to make sure you have plenty of trusted parts to choose from for your 1979 GMC Jimmy. Felpro, Motive Gear, and Dorman 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 1979 GMC Jimmy, but don’t take our word for it – read our customer ratings and reviews and buy with confidence. Out of the 1,028 reviews in this category, some of the top rated parts include Differential Ring And Pinion with 5.0 stars and Bearings with 5.0 stars.

    So if you’re in the market for aftermarket Differentials to keep your 1979 GMC Jimmy 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 1979 GMC Jimmy Last

    Simple repair, complete replacement, or a full rebuild. No matter the job, your 1979 GMC Jimmy 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 Jimmy the best it can be. Be sure to browse some of our top Differentials brands and parts.

    Popular Driveworks Differentials

    We carry Driveworks parts in our stock across Differential Pinion Seals categories, plus more. For a 1979 GMC Jimmy, our most popular Driveworks Differentials include:
    Differential Pinion Seal
    from $7.79
    (1)
    Differential Pinion Seal
    Differential Pinion Seals
    Oil Seal
    from $6.29
    (1)
    Oil Seal
    Differential Pinion Seals

    Top 1979 GMC Jimmy Differentials from Felpro

    Felpro products are another trusted brand when it comes to Differentials for your 1979 GMC Jimmy. Popular Felpro parts include:
    Differential Cover Gasket
    from $9.99
    (195)
    Differential Cover Gasket
    Rear Differential Cover Gaskets
    Axle Housing Cover Gasket
    from $6.49
    (10)
    Axle Housing Cover Gasket
    Front Housing Cover Gaskets
    DIFFERENTIAL GASKET
    from $7.99
    (3)
    DIFFERENTIAL GASKET
    Rear Differential Cover Gaskets

    FAQs for 1979 GMC Jimmy Differentials

    What are the most purchased Differentials for the 1979 GMC Jimmy?

    Out of 169 Differentials for the 1979 GMC Jimmy, the most popular in our inventory are:
    Differential Shaft Lock Bolt
    from $5.99
    (11)
    Differential Shaft Lock Bolt
    Differential Pinion Shaft Lock Bolts
    Ring Gear Bolt
    from $2.49
    This product is not rated
    Ring Gear Bolt
    Differential Ring Gear Bolts
    3 Qt - Penzoil 80W90 Conventional Gear Oil
    from $44.99
    This product is not rated
    3 Qt – Penzoil 80W90 Conventional Gear Oil
    Differential Oil

    What are the top-rated 1979 GMC Jimmy Differentials?

    Top-rated Differentials for your 1979 GMC Jimmy based on customer reviews/ratings are:
    Differential Ring And Pinion
    from $350.99
    (7)
    Differential Ring And Pinion
    “Great spark plugs.”
    Bearings
    from $9.99
    (4)
    Bearings
    “Fast handling”
    Differential Ring and Pinion
    from $241.99
    (4)
    Differential Ring and Pinion
    “Perfect match and easy install”