1964 BUICK Differential & Rear-End Components Transmission & Drivetrain - In Stock Filter Options - Vendor In Stock Filter Options - Free Shipping on Orders Over $109 at Summit Racing

Yukon Gear & Axle Dura Grip Positraction Carriers GM 8.875 Inch (12-bolt) YDGGM12P-4-30-1

Differential Carrier, Dura Grip Positraction, Clutch-type, 30-spline, Rear, GM 8.875 in. (12-bolt) Passenger Car, Each

Part Number: YGA-26013

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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 )

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Motive Gear Ring and Pinion Sets GM12-308 GM 8.875 in. (12-bolt) truck 3.08 Gears

Gear, Ring and Pinion, 3.08:1 Ratio, GM, 8.875 in., 12-Bolt, Set

Part Number: MGR-GM12-308

3.0 out of 5 stars ( 2 )

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Yukon Gear & Axle Spider Gear Kits YPKGM12-P-30

Spider Gears, Side Gears, Cross Shaft Pin, Yukon Dura Grip Carrier Style, Rear, GM 8.875 in., 30 Spline, Kit

Part Number: YGA-16039

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Estimated Ship Date: Apr 20, 2026 if ordered today

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Estimated Ship Date: Apr 20, 2026 if ordered today

Yukon Gear & Axle Ring and Pinion Sets YG GM12P-342 GM 8.875 in. (12-bolt) passenger car 3.42 Gears

Gear, Ring and Pinion, 3.42:1 Ratio, 1.625 in. Pinion, 30 Spline, 8.875 in. Ring Gear, GM 8.875 in., Set

Part Number: YGA-24121

1.0 out of 5 stars ( 1 )

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Summit Racing™ Positraction 33 Spline Differential Carriers GM 8.875 Inch (12-bolt) SUM-730948

Differential Carrier, Positraction, Nodular Iron, GM 8.75 in., 33 Spline, 3.08 to 3.90 Ratio, Each

Part Number: SUM-730948

5.0 out of 5 stars ( 1 )

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Yukon Gear & Axle Differential Clutch Sets YPKGM12-PC-DG1

Differential Clutch, Steel Pack, Rear, Posi, GM, 8.875 in., Set

Part Number: YGA-16064

Not Yet Reviewed

Estimated Ship Date: Apr 21, 2026 if ordered today

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Estimated Ship Date: Apr 21, 2026 if ordered today

Richmond Gear Pinion Bearing Spacer and Shim Kits 04-0012-S

Pinion Spacer and Shims, Steel, GM, 8.875 in., Passenger Car, Kit

Part Number: RMG-040012S

4.67 out of 5 stars ( 3 )

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Motive Gear Differential Carrier and Pinion Shim Kits GM7.5MSK

MASTER SHIM KIT GM 7.5

Part Number: MGR-GM7-5MSK

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Yukon Gear & Axle Pinion Shims SK 21104

Pinion Shims, Steel, Kit

Part Number: YGA-55008

5.0 out of 5 stars ( 1 )

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Yukon Gear & Axle Differential Crush Sleeves YSPCS-020

Crush Sleeve, Steel, GM 8.2 in., GM 8.2 in., BOP Axle, Each

Part Number: YGA-33103

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Yukon Gear & Axle Ring and Pinion Sets YG GM12P-373-4 GM 8.875 in. (12-bolt) passenger car 3.73 Gears

Ring & Pinion Gear, 3.73 Ratio, GM, 8.875 in. Passenger Car, Set

Part Number: YGA-24124

4.0 out of 5 stars ( 2 )

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Yukon Gear & Axle Ring and Pinion and Differential Combos YGK2322

Ring and Pinion Gears and Installation Kit, 12P 8.875" GM 3.73 REAR R&P GEAR/ INSTALL KIT PACKAGE with 30spl POSI & AK 1563 AXLE BRGS (2.25" OD)

Part Number: YGA-12613

Not Yet Reviewed

Estimated Ship Date: Apr 20, 2026 if ordered today

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Estimated Ship Date: Apr 20, 2026 if ordered today

Yukon Gear & Axle Differential Crush Sleeves YSPCS-014

Crush Sleeve, Steel, 0.620 in. Tall, Each

Part Number: YGA-33097

1.0 out of 5 stars ( 1 )

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Dorman Ring and Pinion Sets 697-139 GM 8.875 in. (12-bolt) passenger car 3.90 Gears

Gear, Ring and Pinion, 3.90:1 Ratio, GM 8.875 in. (12-Bolt), Set

Part Number: RNB-697-139

Not Yet Reviewed

Estimated Ship Date: Apr 8, 2026 if ordered today

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Estimated Ship Date: Apr 8, 2026 if ordered today

Richmond Gear EXCel Mini Spools XL-5135

Mini Spool, MINI SPOOL GM 10 BOLT 8.2"

Part Number: RMG-XL-5135

Not Yet Reviewed

Estimated Ship Date: Apr 7, 2026 if ordered today

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Estimated Ship Date: Apr 7, 2026 if ordered today

Yukon Gear & Axle Pinion Shims SK T8

Pinion depth shim kit for Toyota8", GM 7.5", 8.2" & 12 bolt truck

Part Number: YGA-55064

5.0 out of 5 stars ( 2 )

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RESTOPARTS® Supplied Differential Drain Plugs CH28892

Differential Drain Plug, Rear Axle Position, Internal Square Drive Head, Steel, 1/2 in. NPT Threads, Buick, Chevy, Oldsmobile, Pontiac, Each

Part Number: OPG-CH28892

5.0 out of 5 stars ( 2 )

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Yukon Gear & Axle Ring and Pinion Gear and Differential Combos YGK2360

Ring and Pinion Gears and Installation Kit, 8.2" BOP 3.55 RATIO REAR R&P GEAR/ INSTALL KIT PACKAGE with 28spl POSI

Part Number: YGA-12583

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Apr 20, 2026 if ordered today

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Estimated Ship Date: Apr 20, 2026 if ordered today

Yukon Gear & Axle Differential Crush Sleeves YSPCS-021

Crush Sleeve, Steel, 2.340 in. Tall, GM 8.875 in. Passenger Car, Each

Part Number: YGA-33104

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USA Standard Gear ZG Series Ring and Pinion Sets ZG GM12P-390 GM 8.875 in. (12-bolt) passenger car 3.90 Gears

USA Standard Ring & Pinion gear set for GM 12 bolt car in a 3.90 ratio

Part Number: SPZ-36169

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Estimated Ship Date: Apr 3, 2026 if ordered today

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Estimated Ship Date: Apr 3, 2026 if ordered today

National Bearing Pinion Bearings M88048

Bearing, Pinion, 1.312 in. Inside Diameter, Each

Part Number: NTL-M88048

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Richmond Gear EXCel Ring and Pinion Sets 12BC342 GM 8.875 in. (12-bolt) passenger car 3.42 Gears

Gear, Ring and Pinion, EXCel, 3.42:1 Ratio, GM, 8.875 in., 12-Bolt Car, Set

Part Number: RMG-12BC342

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Apr 7, 2026 if ordered today

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Estimated Ship Date: Apr 7, 2026 if ordered today

Dorman Ring and Pinion Sets 697-807 GM 8.2 in. 3.73 Gears

Gear, Ring and Pinion, 3.73:1 Ratio, GM 8.2 in., Set

Part Number: RNB-697-807

Not Yet Reviewed

Estimated Ship Date: Apr 9, 2026 if ordered today

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Estimated Ship Date: Apr 9, 2026 if ordered today

Currie 9 in. Crate Rear End Assemblies CR-GA135TWAB

Crate Axle, 64-66 GM A-Body Centurion 9-Inch, Black PC, 31-Spline, 3.50 Ratio, Helical Limited Slip, Wilwood 11" Dynapro Black Calipers

Part Number: CUR-CR-GA135TWAB

Not Yet Reviewed

Estimated Ship Date: Apr 22, 2026 if ordered today

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Estimated Ship Date: Apr 22, 2026 if ordered today