1975 Buick Skylark Differentials

Essential 1975 Buick Skylark Differentials

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

Lock Right Locker

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$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!
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    Yukon Gear – Chrome Cover For 8.6", 8.5" And 8.2" GM Rear (Part No.32017)

    Chrome Cover For 8.6", 8.5" And 8.2" GM Rear

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    $74.99
    Chrome cover for 8.6″, 8.5″ and 8.2″ GM rear.

    Product Features:
    • Fits GM 8.2″, 8.5″ and 8.6″
    • Chrome
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    Pro-King – Differential Cross Shaft (Part No.742G673)

    Differential Cross Shaft

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    $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.
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    Yukon Gear – Yoke For 8.5" Or 8.6" GM (Mech 3R) With A U/Joint Size And Triple Lip Design (Part No.41071)

    Yoke For 8.5" Or 8.6" GM (Mech 3R) With A U/Joint Size And Triple Lip Design

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    $226.99
    Yukon yoke for 8.5″ or 8.6″ GM (mech 3R) with a U/joint size and triple lip design. 2.556″ snap ring span, 1.125″ cap diameter. Inside snap ring. This yoke uses inside snap rings. All Yukon yokes come with a one year warranty against manufacturing defects.

    Product Features:
    • Fits GM 8.5″ and 8.6″
    • 30 spline
    • Mechanics 3R u-joint size
    • 2.556″ snap ring span
    • 1.125″ cap diameter
    • Inside snap ring design
    • Strap style
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    Yukon Gear – Bearing Race Driver (Part No.56022)

    Bearing Race Driver

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    $188.99
    Bearing race driver. No return.

    Product Features:
    • Bearing race driver
    • Fits M86610 race
    • All steel construction
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    Motive Gear – Differential Master Bearing Kit – Koyo (Part No.R10REMK)

    Differential Master Bearing Kit - Koyo

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    $113.99
    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:
    • GM 10 BOLT 8.5″ MSTR KIT W/EATON OR AUBURN PRO
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    Yukon Gear – Clutch Guide For GM 7.5" & 7.6" Dura Grip (Part No.33251)

    Clutch Guide For GM 7.5" & 7.6" Dura Grip

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    $10.99
    Product Features:
    • Clutch guide
    • Fits GM 7.5″ and 7.625″ Dura Grip
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    USA Standard Gear – Master Overhaul Kit for the GM 8.5 Differential with HD Posi or Locker (Part No.37057)

    Master Overhaul Kit for the GM 8.5 Differential with HD Posi or Locker

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    $208.99
    USA Standard Master Overhaul kits let you finish your install with confidence. This kit uses Koyo bearings and races. Included are carrier bearings and races, pinion bearings and races, pinion seal, complete shim kit, ring gear bolts, pinion nut, crush sleeve (if applicable), oil baffles and slingers (if applicable), threading locking compound, marking compound with brush and gasket.

    Product Features:
    • Fits GM 8.5″ rear with aftermarket positraction
    • Uses Koyo bearings and races
    • Included are carrier bearings and races, pinion bearings and races, pinion seal, complete shim kit, ring gear bolts, pinion nut, crush sleeve, thread locker, marking compound with brush and gasket.
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    Yukon Gear – Posi Shim Kit For GM 7.5" & 7.625" Eaton Positraction (Part No.16047)

    Posi Shim Kit For GM 7.5" & 7.625" Eaton Positraction

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    $42.99
    Product Features:
    • Shim kit
    • Fits GM 7.5″ and 7.625″ with Eaton positraction
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    Yukon Gear – Adapter Sleeve Fro GM 7.2", 7.625" & 8.0" Yokes To Use Triple Lip Pinion Seal (Part No.41210)

    Adapter Sleeve Fro GM 7.2", 7.625" & 8.0" Yokes To Use Triple Lip Pinion Seal

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    $25.99
    Yukon 4340 Chrome-Moly replacement outer stub for D44 ’87-’94 Wrangler with a length of 8.31″ and 27 splines. Yukon 4340 Chrome-Moly axles provide up to 50% increased strength over stock axles for use in extreme performance applications with large tires and high horsepower. Yukon’s 4340 axles are manufactured using the latest technologies and the highest quality materials to ensure high strength and long life. Limited Lifetime warranty covers manufacturing defects and axle breakage for as long as you own the vehicle. This warranty is not transferable to another party. “No Questions Asked” replacement for first warranty return, however Yukon reserves the right to either replace axle or refund original purchase price after the first warranty claim. Yukon (through Randy’s ring & pinion) makes final determination on warranty considerations.

    Product Features:
    • 27 spline
    • 8.31″ long
    • Fits Dana Spicer 30 in 1987-1994 Wrangler
    • Outer stub
    • 5-760X U-joint size
    • 4340 Chromoly
    • For WARN hub conversion only
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    Yukon Gear – Positraction Shim Kit (18 Shims) For GM 8.2", GM 8.5", 12T, 12P, Ford 8.8" & Cast Iron ‘Vette (Part No.16042)

    Positraction Shim Kit (18 Shims) For GM 8.2", GM 8.5", 12T, 12P, Ford 8.8" & Cast Iron 'Vette

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    $41.99
    Product Features:
    • Shim kit
    • Fits Ford 8.8″, 1963-1979 Corvette, GM 12 bolt passenger car and truck, 8.2″, 8.5″ and 8.6″ Dura Grip positraction
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    Yukon Gear – 8.5" & 8.6" GM Standard Open Pinion Gear Thrust Washer – Also Fits 8.5" Eaton With 0.795" Cross Pin (Part No.33385)

    8.5" & 8.6" GM Standard Open Pinion Gear Thrust Washer - Also Fits 8.5" Eaton With 0.795" Cross Pin

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    $10.99
    8.5″ & 8.6″ GM standard Open pinion gear Thrust washer. also fits 8.5″ Eaton with 0.795″ cross pin.

    Product Features:
    • Pinion gear thrust washer for GM 8.5″ and 8.6″
    • Fits standard open differentials only
    • 0.795″ I.D.
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    National – Bearings (Part No.M804049)

    Bearings

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    $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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    Valvoline – MaxLife Multi-Vehicle (ATF) Full Synthetic Automatic Transmission Fluid, 1 Quart (Part No.VV324)

    MaxLife Multi-Vehicle (ATF) Full Synthetic Automatic Transmission Fluid, 1 Quart

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    $12.79
    Product Features:
    • High-performance seal conditioners maintain and preserve the elasticity of seals to help prevent leaks
    • Long-life friction modifiers and premium base oils help improve smooth shifting, eliminate slippage and shudder, prevent clutch wear and improve drivability longer than conventional fluids
    • Enhanced cleaning additives help reduce varnish formation and keep the transmission running properly longer
    • Engineered with a unique blend of viscosity modifiers and base oils to provide better oil flow at low temperatures and greater film protection at higher temperatures
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    Richmond Gear – Differential Cross Shaft (Part No.80-0270-1)

    Differential Cross Shaft

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    $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.
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    Motive Gear – Differential Carrier Gear Kit (Part No.GM10BI)

    Differential Carrier Gear Kit

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    $111.99


    Product Features:
    • GM10 BOLT 8.5″ 28 SPL INTERNAL KIT (OPEN)
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    Yukon Gear – Pinion Nut Washer (Part No.33167)

    Pinion Nut Washer

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    $14.99
    Pinion nut washer for GM 7.2″ IFS, 7.5″, 7.6″, 7.6″ IFS, 8.5″, 8.6″ & 9.5″.

    Product Features:
    • Pinion nut washer for GM 7.2″ IFS, 7.5″, 7.625″, 7.6″ IFS, 8.5″, 8.6″ and 9.5″.
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    USA Standard Gear – 8.5" GM Spartan Locker Cross Pin (Part No.17024)

    8.5" GM Spartan Locker Cross Pin

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    $49.99
    Product Features:
    • USA Standard Gear heavy-duty cross pin shaft
    • Fits GM 8.5″ and 8.6″
    • Works with Spartan Locker or standard open spider gears
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    Yukon Gear – Pinion Seal For GM 8.5", 8.2", Buick, Oldsmobile, And Pontiac (Part No.30017)

    Pinion Seal For GM 8.5", 8.2", Buick, Oldsmobile, And Pontiac

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    $9.99
    Pinion seal for GM 8.5″, 8.2″, Buick, Oldsmobile, and Pontiac.Yukon Mighty seal.

    Product Features:
    • Pinion seal
    • Fits GM 8.5″ rear, 8.2″ and 8.2″ in Buick, Oldsmobile and Pontiac
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    Yukon Gear – Grizzly Locker For GM 8.5" & 8.6", 30 Spline, 2.73 & Up (Part No.28035)

    Grizzly Locker For GM 8.5" & 8.6", 30 Spline, 2.73 & Up

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    $1153.99
    The Yukon Grizzly Locker is the ultimate in locking differentials for street, off-road, & drag racing. Grizzly Lockers provide 100% power to both tires, while still allowing for disengagement while negotiating turns. The Yukon Grizzly locker is a mechanical locking differential. It features 8620 internals for maximum strength. It’s patented design reduces common locker failures. All units assembled in the USA! All Grizzly Lockers are backed by the best warranty in the business! Yukon covers the replacement unit and covers any collaterally damaged parts and associated labor, up to $2,000!

    Product Features:
    • Fits GM 8.5″ and 8.6″ with 30 spline axles
    • 2.73 and up ratio only
    • Patented internal design reduces common locker failures
    • 8620 internals for added strength
    • Assembled in the USA
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    Dorman – Help – Differential Shaft Lock Bolt (Part No.81048)

    Differential Shaft Lock Bolt

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

    Differential Cover Plug

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    $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.
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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

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    $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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    Yukon Gear – Ring Gear Bolt (Part No.33049)

    Ring Gear Bolt

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    $6.99
    Ring gear bolt for GM 7.5″, 7.6″, 7.6″ IRS, 8.0″, 8.25″ IFS, 8.5″, 8.6″ & 8.6″ IRS. 7/16″ x 20.

    Product Features:
    • Ring gear bolt for GM 7.5″, 7.625″, 7.6″ IRS, 8.0″, 8.25″ IFS, 8.5″, 8.6″ and 8.6″ IRS
    • 7/16″ x 20
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    Motive Gear – Differential Gear Install Kit (Part No.GM8.5PIK)

    Differential Gear Install Kit

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    $59.99


    Product Features:
    • 8.5 “P” AXLE MINI INSTALL KIT
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    Motive Gear – Differential Pinion Nut (Part No.1260823)

    Differential Pinion Nut

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    $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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    Yukon Gear – Standard Open Side Gear Thrust Washer For 8.5" GM (Part No.33304)

    Standard Open Side Gear Thrust Washer For 8.5" GM

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    $15.99
    Standard open side gear thrust washer for 8.5″ GM.

    Product Features:
    • Side gear thrust washer
    • Fits GM 8.5″
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    1975 Buick Skylark Differentials

    Maybe you’re in the middle of a full rebuild of that 1975 Buick Skylark. Maybe you just need a couple of Differentials. Either way, Advance Auto Parts has 258 different Differentials in our inventory ranging from $1.99 to $1,153.99. That means you can find the exact parts or products you need to keep that 1975 Buick Skylark running smoothly.

    Differentials are only as good as their brand. We stock 12 different brands to make sure you have plenty of trusted parts to choose from for your 1975 Buick Skylark. Valvoline, Felpro, and Driveworks 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 1975 Buick Skylark, but don’t take our word for it – read our customer ratings and reviews and buy with confidence. Out of the 6,522 reviews in this category, some of the top rated parts include Bearings with 4.8 stars and Differential Ring And Pinion with 4.2 stars.

    So if you’re in the market for aftermarket Differentials to keep your 1975 Buick Skylark 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 1975 Buick Skylark Last

    Simple repair, complete replacement, or a full rebuild. No matter the job, your 1975 Buick Skylark 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 Skylark the best it can be. Be sure to browse some of our top Differentials brands and parts.

    FAQs for 1975 Buick Skylark Differentials

    What are the most purchased Differentials for the 1975 Buick Skylark?

    Out of 258 Differentials for the 1975 Buick Skylark, the most popular in our inventory are:
    Differential Cover Gasket
    from $9.99
    (195)
    Differential Cover Gasket
    Rear Housing Cover Gaskets
    Taper Bearing Set
    from $10.29
    (38)
    Taper Bearing Set
    Differential Bearings
    DIFFERENTIAL GASKET
    from $7.99
    (45)
    DIFFERENTIAL GASKET
    Rear Differential Cover Gaskets

    What are the top-rated 1975 Buick Skylark Differentials?

    Top-rated Differentials for your 1975 Buick Skylark based on customer reviews/ratings are:
    Bearings
    from $16.99
    (25)
    Bearings
    “Fit like it should no issues”
    Differential Ring And Pinion
    from $342.99
    (23)
    Differential Ring And Pinion
    “So far so good.”
    Bearings
    from $15.99
    (9)
    Bearings
    “as advertised”