Oldsmobile 98 Differentials

Your One-Stop Shop For Trusted Oldsmobile 98 Differentials

If you’re in search of Oldsmobile 98 Differentials aftermarket or OEM parts, consider your search over! Advance Auto Parts carries 203 Differentials from top brands with prices ranging from $0.91 to $1,704.99.

Beyond great prices, we stock trusted brands manufacturing all types of Differentials for your Oldsmobile 98. Of the 16 OEM and aftermarket parts brands we carry, some of the most popular are Valvoline, FELPRO, and Dorman.

And don’t forget to read customer reviews across all Differentials categories in our catalog. Buy with confidence by leveraging past customer experiences of our aftermarket and OEM parts.

At Advance Auto Parts, we don’t think top quality Differentials have to cost top dollar, and we prove it. Browse our top Oldsmobile 98 Differentials below, order online to ship to your home, or head into your nearest Advance Auto Parts location to get started.

Essential Oldsmobile 98 Differentials

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
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

Motive Gear – Differential Crush Sleeve (Part No.3954480)

Differential Crush Sleeve

from

$5.49


Product Features:
  • CRUSH SLEEVE 12 BLT CAR
See More

National – Bearings (Part No.HM88610)

Bearings

from

$15.49
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

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
See More

Felpro – Differential Cover Gasket (Part No.RDS 55029)

Differential Cover Gasket

from

$7.49
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

FAG US – SHAFT SEAL (Part No.SS2421)

SHAFT SEAL

from

$14.29
SHAFT SEAL

Valvoline – DEXRON – VI ATF Full Synthetic Automatic Transmission Fluid, 1 Quart (Part No.822405)

DEXRON - VI ATF Full Synthetic Automatic Transmission Fluid, 1 Quart

from

$14.49
Valvoline DEXRON-VI/MERCON LV ATF is a full-synthetic transmission fluid formulated with advanced additive technology to meet and exceed the requirements of the General Motors DEXRON-VI specification. It is officially licensed and approved by GM and is fully back-serviceable and can be used wherever DEXRON-II and/or DEXRON-III are recommended. Recommended for use in the following applications: DEXRON-VI, DEXRON-III, DEXRON-II, and Allison C-4.

Product Features:
  • Formulated with full-synthetic base stocks and advanced additive technology to meet the challenging demands of automatic transmissions
  • Enhanced anti-shudder protection for smooth shifting and maximum power transfer
  • 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

Pro-King – Differential Ring Gear Bolt (Part No.742G935)

Differential Ring Gear Bolt

from

$1.99
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

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

National – Bearings (Part No.25584)

Bearings

from

$28.49
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

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

Differential Pinion Shim Kit

from

$12.99


Product Features:
  • KIT SHIM
See More

Motive Gear – Differential Gear Install Kit (Part No.GM12IKC)

Differential Gear Install Kit

from

$64.49


Product Features:
  • MINI INSTALL KIT GM 12BLT 8.875 CAR
See More

Motive Gear – Pinion Seal (Part No.8610)

Pinion Seal

from

$3.99
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 on and off-road, check out Motive Gear. Motive Gear products can be found in the winner’s circle at racing events worldwide. The superior quality of Motive Gear components is the result of years of racing development, outstanding design and state-of-the-art manufacturing methods. Extensive testing is performed on all products by our in-house engineers.
See More

Powertrax – No-Slip Traction System (Part No.9207822801)

No-Slip Traction System

from

$544.99
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

    Motive Gear – Differential Master Bearing Kit – Koyo (Part No.R12CRMK)

    Differential Master Bearing Kit - Koyo

    from

    $105.99
    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:
    • MSTR BRG KT – 12 BOLT CAR
    See More

    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.
    See More

    Dorman – Differential Yoke including Seal and Pinion Nut (Part No.697-500)

    Differential Yoke including Seal and Pinion Nut

    from

    $139.99
    Worn or damaged differential end yoke causing driveline vibrations? This direct replacement end yoke matches the original equipment part for a trustworthy repair and reliable performance.

    Product Features:
    • Direct replacement – this differential end yoke matches the fit and construction of the original yoke.
    • Excellent value – this replacement end yoke offers original equipment quality at a fraction of the price of dealer parts.
    • Quality materials – this end yoke is machined from cast iron for strength and is precision machined for reliability
    • Validated fit – this differential end yoke has been tested to confirm accurate fit
    See More

    Richmond Gear – Differential Mini Spool (Part No.78-1028-1)

    Differential Mini Spool

    from

    $124.99
    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 Spool (Part No.81-1028-1)

    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.
    See More

    Richmond Gear – RngPnn (Part No.69-0171-1)

    RngPnn

    from

    $360.99
    RngPnn

    Pro-King – Differential Cross Shaft (Part No.742G930)

    Differential Cross Shaft

    from

    $2.79
    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 – Pinion Nut (Part No.740A961)

    Pinion Nut

    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.
    See More

    Dorman – Rear Differential Cover (Part No.697-700)

    Rear Differential Cover

    from

    $32.99
    This direct replacement differential cover matches the fit and function of the original equipment diff cover for a reliable, leak-free repair. It features a durable design, made to strict specifications, to help ensure reliable service life.

    Product Features:
    • Direct replacement – this differential cover matches the fit and function of the original equipment diff cover on select vehicles.
    • Reliable repair – the smart solution for fixing an existing cover that’s rusted, damaged or leaking differential fluid.
    • Durable construction – this differential cover is made according to strict engineering standards to help ensure dependability
    • Trustworthy quality – backed by a team of product experts in the United States and more than a century of automotive experience
    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

    Differentials Brands You Can Trust For Your Oldsmobile 98

    16 trusted brands of Differentials line our shelves, ready to help keep your Oldsmobile 98 running smooth. Below are some of the most popular brands and their top Differentials offerings:

    Popular Driveworks Differentials

    Driveworks products for the Oldsmobile 98 span several categories. Some of the highest-rated Driveworks Differentials that will fit your Oldsmobile 98 are:
    Oil Seal
    from $7.79
    (1)
    Oil Seal
    Differential Pinion Seals
    Oil Seal
    from $6.29
    (1)
    Oil Seal
    Differential Pinion Seals

    Top Oldsmobile 98 Differentials from Felpro

    Your Oldsmobile 98 will be purring again thanks to Felpro brand Differentials available for online order or in-store pick up. Popular Felpro parts include:
    Differential Cover Gasket
    from $9.99
    (195)
    Differential Cover Gasket
    Rear Differential Cover Gaskets
    DIFFERENTIAL GASKET
    from $7.99
    (45)
    DIFFERENTIAL GASKET
    Rear Differential Cover Gaskets
    Differential Cover Gasket
    from $7.49
    (7)
    Differential Cover Gasket
    Rear Housing Cover Gaskets

    Most Purchased Oldsmobile 98 Differentials from Valvoline

    When you buy the most frequently purchased Valvoline brand Differentials, you can be confident it will be the right part for your Oldsmobile 98. Here are the Valvoline Differentials Advanced Auto customers buy the most:
    Differential Cover Gasket
    from $9.99
    (195)
    Differential Cover Gasket
    Rear Differential Cover Gaskets
    Differential Yoke including Seal and Pinion Nut
    from $139.99
    (10)
    Differential Yoke including Seal and Pinion Nut
    Differential Pinion Yokes

    FAQs for Oldsmobile 98 Differentials

    What are the most purchased Differentials for the Oldsmobile 98?

    Out of 203 Differentials for the Oldsmobile 98, the most popular in our inventory are:
    Bearings
    from $23.99
    (7)
    Bearings
    Front Differential Pinion Bearings
    Differential Shaft Lock Bolt
    from $5.99
    (11)
    Differential Shaft Lock Bolt
    Differential Pinion Shaft Lock Bolts

    What are the top-rated Oldsmobile 98 Differentials?

    Top-rated Differentials for your Oldsmobile 98 based on customer reviews/ratings are:
    Rear Differential Cover
    from $20.99
    (38)
    Rear Differential Cover
    “Looks great, face lift for the rear differential. Old one was rusted & in bad shape. Just remember to get the correct size.”
    Rear Differential Cover
    from $32.99
    (14)
    Rear Differential Cover
    “Heavy steel with the original magnet. Fits like original.. Not a cheap stamping by any means”
    Differential Yoke including Seal and Pinion Nut
    from $139.99
    (10)
    Differential Yoke including Seal and Pinion Nut
    “Will this fot 2001 jeep grand cherokee 4.0 limited with dana 35 read end”