Buick GS 400 Differentials

Your One-Stop Shop For Trusted Buick GS 400 Differentials

If you’re in search of Buick GS 400 Differentials aftermarket or OEM parts, consider your search over! Advance Auto Parts carries 62 Differentials from top brands with prices ranging from $3.99 to $566.99.

Beyond great prices, we stock trusted brands manufacturing all types of Differentials for your Buick GS 400. Of the 9 OEM and aftermarket parts brands we carry, some of the most popular are Driveworks, National, and Yukon Gear.

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 Buick GS 400 Differentials below, order online to ship to your home, or head into your nearest Advance Auto Parts location to get started.

Essential Buick GS 400 Differentials

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
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Motive Gear – Differential Mini Spool (Part No.MS10C-28)

Differential Mini Spool

from

$98.99


Product Features:
  • MINI SPOOL GM 10 BOLT 8.2″ 28 SPLINE
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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 – 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!
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    Motive Gear – Differential Pinion Seal (Part No.8610)

    Differential 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 o
    See More

    Richmond Gear – Differential Cross Shaft (Part No.CSPGM12)

    Differential Cross Shaft

    from

    $27.49
    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.
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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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    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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    Mr. Gasket – Differential Gasket (Part No.84)

    Differential Gasket

    from

    $21.79
    Mr. Gasket Axle Housing/Differential Cover or Rear End Gaskets are manufactured from a .047 inch thick cellulose/nitrile composite gasket material for excellent sealing and durability. They are precision die-cut for an excellent fit. Fits 1965-1970 Buick, Olds, Pontiac, 10 bolt 8.20 inch ring gear.

    Product Features:
    • .047″ thick cellulose/nitrile composite gasket material
    • Precision die cut
    • Reusable
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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
    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
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    National – Shaft Repair Sleeve (Part No.99170)

    Shaft Repair Sleeve

    from

    $41.99
    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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    National – Bearings (Part No.M804049)

    Bearings

    from

    $38.49
    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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    National – Bearings (Part No.M88010)

    Bearings

    from

    $10.49
    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 Gear Kit (Part No.GM12BI)

    Differential Carrier Gear Kit

    from

    $163.99


    Product Features:
    • GM 8 7/8″ OPEN INTERNAL KIT CAR & TRUCK
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    Motive Gear – Differential Master Bearing Kit – Timken (Part No.R12CRMKT)

    Differential Master Bearing Kit - Timken

    from

    $138.99
    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:
    • MASTER KIT GM 12 BOLT CAR
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    Motive Gear – Differential Crush Sleeve (Part No.3954480)

    Differential Crush Sleeve

    from

    $5.49


    Product Features:
    • CRUSH SLEEVE 12 BLT CAR
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    ARP Auto Racing – For Use With General Motors, 0.800" Head L, 3/8" – 24 Thread Size, Chrome Moly (Part No.230-3001)

    For Use With General Motors, 0.800"  Head L, 3/8" - 24 Thread Size, Chrome Moly

    from

    $40.49
    The tremendous shock loads generated at launch by most any drag racing vehicle equipped with todays sticky tire compounds or the acceleration and deceleration of oval track cars put considerable strain on the ring gear. For this reason, the fastener experts at ARP have developed the Pro Series ring gear bolts. They are forged from premium grade 8740 chrome moly steel and are heat treated to a nominal rating of 200,000 PSI tensile strength. Specially hardened, precision ground washers are included where required. Available to fit most any ring gear setup ranging from popular 9 Inch Ford GM 10 and 12 bolt rear ends to the beefy strange differentials found in top fuel and funny car applications.

    Product Features:
    • Forged From Premium Grade 8740 Chrome Moly Steel
    • Heat Treated
    • Nominally Rated At 200,000 Psi Tensile Strength
    • Specially Hardened, Precision Ground Washers
    • 3/8″-24 RH Thread Size
    • 0.8″ Underhead Length
    • 200,000 PSI
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    Richmond Gear – Differential Ring And Pinion (Part No.69-0032-1)

    Differential Ring And Pinion

    from

    $324.99
    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.79-0074-1)

    RngPnn

    from

    $566.99
    RngPnn

    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
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    Motive Gear – Differential Gear Install Kit (Part No.GM8.5PIK)

    Differential Gear Install Kit

    from

    $59.99


    Product Features:
    • 8.5 “P” AXLE MINI INSTALL KIT
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    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
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    Differentials Brands You Can Trust For Your Buick GS 400

    9 trusted brands of Differentials line our shelves, ready to help keep your Buick GS 400 running smooth. Below are some of the most popular brands and their top Differentials offerings:

    Popular National Differentials

    National products for the Buick GS 400 span several categories. Some of the highest-rated National Differentials that will fit your Buick GS 400 are:
    Bearings
    from $15.99
    (9)
    Bearings
    Front Differential Pinion Bearings
    Bearings
    from $16.99
    (25)
    Bearings
    Differential Bearings
    Bearings
    from $10.49
    (4)
    Bearings
    Rear Differential Pinion Bearings

    Top Buick GS 400 Differentials from Driveworks

    Your Buick GS 400 will be purring again thanks to Driveworks brand Differentials available for online order or in-store pick up. Popular Driveworks parts include:
    Taper Bearing Set
    from $10.29
    (38)
    Taper Bearing Set
    Differential Bearings

    Most Purchased Buick GS 400 Differentials from Driveworks

    When you buy the most frequently purchased Driveworks brand Differentials, you can be confident it will be the right part for your Buick GS 400. Here are the Driveworks Differentials Advanced Auto customers buy the most:
    Taper Bearing Set
    from $10.29
    (38)
    Taper Bearing Set
    Differential Bearings
    Bearings
    from $16.99
    (25)
    Bearings
    Differential Bearings
    3 Qt - Penzoil 80W90 Conventional Gear Oil
    from $44.99
    This product is not rated
    3 Qt – Penzoil 80W90 Conventional Gear Oil
    Differential Oil

    FAQs for Buick GS 400 Differentials

    What are the most purchased Differentials for the Buick GS 400?

    Out of 62 Differentials for the Buick GS 400, 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
    Differential Cover Gasket
    from $7.49
    (7)
    Differential Cover Gasket
    Rear Housing Cover Gaskets
    Differential Carrier Shim Kit
    from $8.49
    (3)
    Differential Carrier Shim Kit
    Differential Carrier Shim Kits

    What are the top-rated Buick GS 400 Differentials?

    Top-rated Differentials for your Buick GS 400 based on customer reviews/ratings are:
    Differential Pinion Shim Kit
    from $7.49
    (1)
    Differential Pinion Shim Kit
    “good product”
    Differential Pinion Nut
    from $8.49
    (1)
    Differential Pinion Nut
    “Said it fits 62 Corvette on website, this nut is 7/8-14 thread and the one that fits is 7/8-16 thread. Wrong info on site set me back a week getting t”