1979 Pontiac Grand Lemans Differentials

Essential 1979 Pontiac Grand Lemans Differentials

Motive Gear – Differential Carrier Shim Kit (Part No.1101)

Differential Carrier Shim Kit

from

$8.49
High-quality Differential Carrier Shim Kit

Product Features:
  • CARRIER SHIMS 12 BOLT GM CAR & TRUCK ALSO GM8.6″ 99-ON
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Felpro – DIFFERENTIAL GASKET (Part No.RDS 55072)

DIFFERENTIAL GASKET

from

$7.99
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
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Driveworks – Taper Bearing Set (Part No.S-A-6)

Taper Bearing Set

from

$10.29
Value-priced bearing meets all cataloged application requirements.

Product Features:
  • Brand may vary by location
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Powertrax – Grip LS Traction System (Part No.LS231230)

Grip LS Traction System

from

$480.99
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!
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Motive Gear – Ring Gear Bolt (Part No.14066913)

Ring Gear Bolt

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$2.49


Product Features:
  • RING GEAR BOLT 8.5″ 7.5″ 7/16 X 20 LEFT HAND
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National – Shaft Repair Sleeve (Part No.99152)

Shaft Repair Sleeve

from

$40.49
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
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Motive Gear – Differential Pinion Shim Kit (Part No.1104)

Differential Pinion Shim Kit

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$12.99


Product Features:
  • KIT SHIM
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Richmond Gear – Differential Spool (Part No.81-1030-1)

Differential Spool

from

$259.99
Richmond Gear is the leading manufacturer of professional quality, high-performance drivetrain products. Our complete line of products ranges from high performance ring-and-pinion sets for serious street and racing applications to torque-hungry manual transmissions and components. Richmond Gear products have been winners both at the Daytona 500 and U.S. Nationals for decades. WINNERS RUN RICHMOND!

Product Features:
  • For over 80-years, the Richmond Double-Diamond logo has represented some of the highest quality gears in the racing industry. Winners Run Richmond!
  • The superior quality of Richmond gearsets is a result of outstanding design, world class manufacturing and an extensive testing process that is performed on all products.
  • Richmond performance gearsets have been winners for decades at: NHRA, NMRA, NMCA, Daytona 500, WISSOTA and U.S. Nationals.
  • Richmond Gear is a leading manufacturer of high performance ring and pinion gearsets and drivetrain components, backed by a two year warranty.
  • Engineered to perform faster and be more reliable, Richmond performance drivetrain products are the result of a continuous research and development program combined with state-of-the-art manufacturing capabilities.
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Pro-King – Differential Carrier Cover (Part No.741A758)

Differential Carrier Cover

from

$29.99
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.
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Dorman – Differential Ring And Pinion Set (Part No.697-812)

Differential Ring And Pinion Set

from

$216.99
This differential ring and pinion directly replaces the original equipment on specific vehicle years, makes and models.

Product Features:
  • Direct replacement – this ring and pinion set matches the fit and function of the original components on certain vehicle applications
  • Effective fix – eliminates grinding and whining from failed original bearings
  • Thoroughly tested – vehicle try-on testing and rigorous quality control measures ensure longevity
  • Trustworthy quality – backed by team of designers and engineers in the United States
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Richmond Gear – RngPnnInstlKt (Part No.83-1016-1)

RngPnnInstlKt

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$182.99
RngPnnInstlKt

Motive Gear – Differential Pinion Seal (Part No.2043)

Differential Pinion Seal

from

$3.49
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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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
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National – Bearings (Part No.HM89449)

Bearings

from

$25.49
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
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Motive Gear – Differential Pinion Nut (Part No.1260823)

Differential Pinion Nut

from

$8.49
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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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
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Motive Gear – Differential Crush Sleeve (Part No.1234726)

Differential Crush Sleeve

from

$4.29
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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Pro-King – Crush Sleeve (Part No.741A034)

Crush Sleeve

from

$3.99
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.
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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
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Yukon Gear – Positraction Internals For 8.5" GM With 28 Spline Axles (Part No.16052)

Positraction Internals For 8.5" GM With 28 Spline Axles

from

$336.99
Yukon positraction internals (0.795″ diameter) for 8.5″ GM with 28 spline axles. Yukon uses higher quality materials and better techniques than OEM to ensure a longer lasting spider gear set. This kit does not include clutches. All components come with a one year warranty against manufacturing defects. This kit is compatible with Yukon Dura Grip or Eaton positractions. It will not fit a factory Gov-Loc positraction.

Product Features:
  • Spider gear kit
  • Fits GM 8.5″ with 28 spline Dura Grip positraction
  • Includes two side gears, four pinion gears, cross pin shaft, roll pin and spider gear thrust washers.
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Pro-King – Differential Pinion Yoke Washer (Part No.742A215)

Differential Pinion Yoke Washer

from

$3.99
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.
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Richmond Gear – Differential Cross Shaft (Part No.80-0272-1)

Differential Cross Shaft

from

$66.99
Richmond Gear is the leading manufacturer of professional quality, high-performance drivetrain products. Our complete line of products ranges from high performance ring-and-pinion sets for serious street and racing applications to torque-hungry manual transmissions and components. Richmond Gear products have been winners both at the Daytona 500 and U.S. Nationals for decades. WINNERS RUN RICHMOND!

Product Features:
  • For over 80-years, the Richmond Double-Diamond logo has represented some of the highest quality gears in the racing industry. Winners Run Richmond!
  • The superior quality of Richmond gearsets is a result of outstanding design, world class manufacturing and an extensive testing process that is performed on all products.
  • Richmond performance gearsets have been winners for decades at: NHRA, NMRA, NMCA, Daytona 500, WISSOTA and U.S. Nationals.
  • Richmond Gear is a leading manufacturer of high performance ring and pinion gearsets and drivetrain components, backed by a two year warranty.
  • Engineered to perform faster and be more reliable, Richmond performance drivetrain products are the result of a continuous research and development program combined with state-of-the-art manufacturing capabilities.
See More

Richmond Gear – Differential Cross Shaft (Part No.CSPGM75)

Differential Cross Shaft

from

$26.49
Richmond Gear is the leading manufacturer of professional quality, high-performance drivetrain products. Our complete line of products ranges from high performance ring-and-pinion sets for serious street and racing applications to torque-hungry manual transmissions and components. Richmond Gear products have been winners both at the Daytona 500 and U.S. Nationals for decades. WINNERS RUN RICHMOND!

Product Features:
  • For over 80-years, the Richmond Double-Diamond logo has represented some of the highest quality gears in the racing industry. Winners Run Richmond!
  • The superior quality of Richmond gearsets is a result of outstanding design, world class manufacturing and an extensive testing process that is performed on all products.
  • Richmond performance gearsets have been winners for decades at: NHRA, NMRA, NMCA, Daytona 500, WISSOTA and U.S. Nationals.
  • Richmond Gear is a leading manufacturer of high performance ring and pinion gearsets and drivetrain components, backed by a two year warranty.
  • Engineered to perform faster and be more reliable, Richmond performance drivetrain products are the result of a continuous research and development program combined with state-of-the-art manufacturing capabilities.
See More

Richmond Gear – Differential Cross Shaft (Part No.80-0270-1)

Differential Cross Shaft

from

$64.99
Richmond Gear is the leading manufacturer of professional quality, high-performance drivetrain products. Our complete line of products ranges from high performance ring-and-pinion sets for serious street and racing applications to torque-hungry manual transmissions and components. Richmond Gear products have been winners both at the Daytona 500 and U.S. Nationals for decades. WINNERS RUN RICHMOND!

Product Features:
  • For over 80-years, the Richmond Double-Diamond logo has represented some of the highest quality gears in the racing industry. Winners Run Richmond!
  • The superior quality of Richmond gearsets is a result of outstanding design, world class manufacturing and an extensive testing process that is performed on all products.
  • Richmond performance gearsets have been winners for decades at: NHRA, NMRA, NMCA, Daytona 500, WISSOTA and U.S. Nationals.
  • Richmond Gear is a leading manufacturer of high performance ring and pinion gearsets and drivetrain components, backed by a two year warranty.
  • Engineered to perform faster and be more reliable, Richmond performance drivetrain products are the result of a continuous research and development program combined with state-of-the-art manufacturing capabilities.
See More

Powertrax – No-Slip Traction System (Part No.9207883005)

No-Slip Traction System

from

$551.99
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

    Powertrax – Grip LS Traction System (Part No.LS201028)

    Grip LS Traction System

    from

    $463.99
    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!
    See More

    Powertrax – Lock Right Locker (Part No.1910-LR)

    Lock Right Locker

    from

    $376.99
    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

    Powertrax – Lock Right Locker (Part No.1930-LR)

    Lock Right Locker

    from

    $445.99
    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

    1979 Pontiac Grand Lemans Differentials

    Maybe you’re in the middle of a full rebuild of that 1979 Pontiac Grand Lemans. Maybe you just need a couple of Differentials. Either way, Advance Auto Parts has 66 different Differentials in our inventory ranging from $2.49 to $551.99. That means you can find the exact parts or products you need to keep that 1979 Pontiac Grand Lemans 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 Pontiac Grand Lemans. Driveworks, National, and Felpro 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 Pontiac Grand Lemans, but don’t take our word for it – read our customer ratings and reviews and buy with confidence. Out of the 1,397 reviews in this category, some of the top rated parts include Bearings with 4.7 stars and Taper Bearing Cone with 3.0 stars.

    So if you’re in the market for aftermarket Differentials to keep your 1979 Pontiac Grand Lemans 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 Pontiac Grand Lemans Last

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

    Popular Felpro Differentials

    We carry Felpro parts in our stock across Rear Differential Cover Gaskets categories, plus more. For a 1979 Pontiac Grand Lemans, our most popular Felpro Differentials include:
    DIFFERENTIAL GASKET
    from $7.99
    (45)
    DIFFERENTIAL GASKET
    Rear Differential Cover Gaskets

    FAQs for 1979 Pontiac Grand Lemans Differentials

    What are the most purchased Differentials for the 1979 Pontiac Grand Lemans?

    Out of 66 Differentials for the 1979 Pontiac Grand Lemans, the most popular in our inventory are:
    Taper Bearing Set
    from $10.29
    (38)
    Taper Bearing Set
    Differential Bearings
    Bearings
    from $16.99
    (25)
    Bearings
    Differential Bearings
    Differential Shaft Lock Bolt
    from $5.99
    (11)
    Differential Shaft Lock Bolt
    Differential Pinion Shaft Lock Bolts

    What are the top-rated 1979 Pontiac Grand Lemans Differentials?

    Top-rated Differentials for your 1979 Pontiac Grand Lemans based on customer reviews/ratings are:
    Bearings
    from $18.79
    (3)
    Bearings
    “as advertised”
    Taper Bearing Cone
    from $17.99
    (2)
    Taper Bearing Cone
    “good deal”
    Differential Gasket
    from $18.09
    (1)
    Differential Gasket
    “A perfect fit. Well made.”