BUICK SKYLARK Differential & Rear-End Components Transmission & Drivetrain - In Stock Filter Options - Vendor In Stock Filter Options - Free Shipping on Orders Over $109 at Summit Racing

Currie 9 in. Crate Rear End Assemblies CR-GA137TEBB

Crate Axle, 64-66 GM A-Body Centurion 9-Inch, Black PC, 31-Spline, 3.70 Ratio, Helical Limited Slip, 11" Explorer Disc

Part Number: CUR-CR-GA137TEBB

Not Yet Reviewed

Estimated Ship Date: Mar 3, 2026 if ordered today

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Estimated Ship Date: Mar 3, 2026 if ordered today

Currie 9 in. Crate Rear End Assemblies CR-GA141TEBB

Crate Axle, 64-66 GM A-Body Centurion 9-Inch, Black PC, 31-Spline, 4.11 Ratio, Helical Limited Slip, 11" Explorer Disc

Part Number: CUR-CR-GA141TEBB

Not Yet Reviewed

Estimated Ship Date: Mar 3, 2026 if ordered today

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Estimated Ship Date: Mar 3, 2026 if ordered today

Richmond Gear Mini-Spools 78-1230-1

Spool, Mini, Steel, 30-Spline, 12-Bolt, GM 8.875 in., Each

Part Number: RMG-78-1230-1

Not Yet Reviewed

Estimated Ship Date: Feb 26, 2026 if ordered today

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Estimated Ship Date: Feb 26, 2026 if ordered today

Yukon Gear & Axle Master Overhaul Kits for 1973-1976 REGAL, 1965-1970 SKYLARK, 1964-1970 WILDCAT - YK GM8.875

Installation Kit, Master Overhaul, GM 8.875 in. Passenger Car, Kit

Part Number: YGA-14094

Not Yet Reviewed

Estimated Ship Date: Monday 2/9/2026

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Estimated Ship Date: Monday 2/9/2026

Currie 9 in. Crate Rear End Assemblies CR-GA137TNBB

64-66 GM A-Body 9-Inch Crate, Black PC, 31-Spline Axle, 3.70 Ratio, Helical Worm Gear Differential, Brakes Not Included

Part Number: CUR-CR-GA137TNBB

Not Yet Reviewed

Estimated Ship Date: Mar 3, 2026 if ordered today

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Estimated Ship Date: Mar 3, 2026 if ordered today

Currie 9 in. Crate Rear End Assemblies CR-GA235TNBB

68-72 GM A-Body 9-Inch Crate, Black PC, 31-Spline Axle, 3.50 Ratio, Helical Worm Gear Differential, Brakes Not Included

Part Number: CUR-CR-GA235TNBB

Not Yet Reviewed

Estimated Ship Date: Mar 3, 2026 if ordered today

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Estimated Ship Date: Mar 3, 2026 if ordered today

Richmond Gear Mini-Spools 78-1028-1

Spool, Mini, Steel, 28-Spline, 10-Bolt, GM 8.5 in., Each

Part Number: RMG-78-1028-1

4.33 out of 5 stars ( 6 )

Estimated Ship Date: Monday 2/9/2026

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Estimated Ship Date: Monday 2/9/2026

Yukon Gear & Axle Differential Clutch Sets YPKGM12-PC-18

Differential Clutch, Steel Pack, Dura-Grip, Eaton, 18-Plate, GM, 8.875 in., Set

Part Number: YGA-16110

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 9, 2026 if ordered today

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Estimated Ship Date: Mar 9, 2026 if ordered today

USA Standard Gear Ring and Pinion Sets ZG GM7.5-342 GM 7.5/7.625 in. 3.42 Gears

Ring and Pinion Gears, 3.42:1 Ratio, 27-spline, Standard Ring Gear Rotation, GM 7.5 in., GM 7.625 in., Set

Part Number: SPZ-36195

Not Yet Reviewed

Estimated Ship Date: Feb 23, 2026 if ordered today

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Estimated Ship Date: Feb 23, 2026 if ordered today

Yukon Gear & Axle Trac Loc Positraction Internals YPKGM8.5-P-28

Differential Internals, Yukon Dura Grip or Eaton Positraction Internals for 8.5" GM with 28 Spline Axles, Kit

Part Number: YGA-16052

Not Yet Reviewed

Estimated Ship Date: Mar 9, 2026 if ordered today

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Estimated Ship Date: Mar 9, 2026 if ordered today

Richmond Gear Complete Ring and Pinion Installation Kits 83-1016-1

Ring and Pinion Installation Kit, GM, 7.5 in./7.625 in., 10-Bolt, 1977-1981, 27-Spline Pinion, Kit

Part Number: RMG-8310161

2.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 2/9/2026

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Estimated Ship Date: Monday 2/9/2026

Dorman Pinion Crush Sleeves 81057

Pinion Crush Sleeves, Steel, GM, 8.5 in., 8.6 in., 8.75 in., Pair

Part Number: RNB-81057

3.67 out of 5 stars ( 3 )

Estimated Ship Date: Monday 2/9/2026

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Estimated Ship Date: Monday 2/9/2026

USA Standard Gear Spartan Lockers GM 8.5 Inch SL GM8.5-30

Differential Carrier, Spartan Locker, Steel, 30-spline, Rear, GM 8.5 in., Each

Part Number: SPZ-17041

Not Yet Reviewed

Estimated Ship Date: Feb 20, 2026 if ordered today

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Estimated Ship Date: Feb 20, 2026 if ordered today

USA Standard Gear Ring and Pinion Sets ZG GM7.5-273 GM 7.5/7.6 in. 2.73 Gears

USA Standard Ring & Pinion gear set for GM 7.5" in a 2.73 ratio

Part Number: SPZ-36192

Not Yet Reviewed

Estimated Ship Date: Feb 23, 2026 if ordered today

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Estimated Ship Date: Feb 23, 2026 if ordered today

Motive Gear Performance Ring and Pinion Sets G885308 GM 8.5/8.6 in. 3.08 Gears

Gear, Ring and Pinion, 3.08:1 Ratio, GM, 8.5/8.6 in., Set

Part Number: MGR-G885308

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Feb 27, 2026 if ordered today

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Estimated Ship Date: Feb 27, 2026 if ordered today

Need It Sooner? We recommend these similar substitute parts:

Allstar Performance Ring and Pinion Gear Sets ALL70120 GM 8.5/8.6 in. 3.08 Gears

5 out of 5 stars ( 2 )

Estimated Ship Date: Monday 2/9/2026

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Yukon Gear & Axle Super Carrier Shims YPKGM12-PC-SHIM

Carrier Shims, Super, Steel, Set of 18

Part Number: YGA-16042

3.11 out of 5 stars ( 9 )

Estimated Ship Date: Monday 2/9/2026

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Estimated Ship Date: Monday 2/9/2026

Yukon Gear & Axle Crosspins and Shafts YSPXP-033

Differential Cross Shaft, Steel, 0.795 in. Diameter, Each

Part Number: YGA-33401

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 2/9/2026

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Estimated Ship Date: Monday 2/9/2026

Richmond Gear Differential Carrier Bearing Shim Kits 38-0007-1

Carrier Shims, Ford 8.8 in., GM 12-Bolt Truck, GM 9.3 in. C-Axle, Kit

Part Number: RMG-3800071

4.13 out of 5 stars ( 8 )

Estimated Ship Date: Monday 2/9/2026

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Estimated Ship Date: Monday 2/9/2026

Richmond Gear Ring and Pinion Sets 69-0175-1 GM 8.5/8.6 in. 5.57 Gears

Gear, Ring and Pinion, 5.57:1 Ratio, GM, 8.5/8.6 in., 10-Bolt, 3 Series, Set

Part Number: RMG-6901751

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 2/9/2026

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Estimated Ship Date: Monday 2/9/2026

Motive Gear Crush Sleeves 9785792

Differential Crush Sleeves, Steel, Fits with Aftermarket Ring and Pinion Set Only, Buick, Chevrolet, GMC, Hummer, Isuzu, Oldsmobile, Pontiac, Each

Part Number: MGR-9785792

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Monday 2/9/2026

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Estimated Ship Date: Monday 2/9/2026

Yukon Gear & Axle Bearing Kits BK GM8.5

Ring and Pinion Gear Installation Kit, Bearing Overhaul, 30 Spline, GM 8.5 in., Kit

Part Number: YGA-11067

Not Yet Reviewed

Estimated Ship Date: Mar 10, 2026 if ordered today

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Estimated Ship Date: Mar 10, 2026 if ordered today

Richmond Gear Differential Pinion Shims 16-0090-1

Mini Spool; Differential Pinion Shim; Fits Ford 7.5 in./Ford 8.8 in./GM 8.5 in.

Part Number: RMG-16-0090-1

Not Yet Reviewed

Estimated Ship Date: Monday 2/9/2026

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Estimated Ship Date: Monday 2/9/2026

Yukon Gear & Axle Differential Bearing Cap Stud Kits YP TA-1815

Differential Main Cap Studs, GM, Kit

Part Number: YGA-32271

Not Yet Reviewed

Estimated Ship Date: Mar 9, 2026 if ordered today

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Estimated Ship Date: Mar 9, 2026 if ordered today

Richmond Gear Ring and Pinion Sets 49-0284-1 GM 7.5/7.625 in. 3.90 Gears

Gear, Ring and Pinion, 3.90:1 Ratio, GM 7.5 in., GM 7.625 in., 10-bolt, Set

Part Number: RMG-49-0284-1

Not Yet Reviewed

Estimated Ship Date: Monday 2/9/2026

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Estimated Ship Date: Monday 2/9/2026

Motive Gear Ring and Pinion Sets GM7.5-323 GM 7.5 in. 3.23 Gears

Ring and Pinion

Part Number: MGR-GM75-323

Not Yet Reviewed

Estimated Ship Date: Monday 2/9/2026

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Estimated Ship Date: Monday 2/9/2026