PONTIAC GTO 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 Master Overhaul Kits YK GMOLDS-63-64

Yukon Master Overhaul kit for '63-'64 GM Oldsmobile differential

Part Number: YGA-14101

Not Yet Reviewed

Estimated Ship Date: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 if ordered today

Yukon Gear & Axle Bearing Kits BK GM12P

Ring and Pinion Gear Installation Kit, Bearing Overhaul, 30 Spline, GM 8.875 in., Kit

Part Number: YGA-11054

Not Yet Reviewed

Estimated Ship Date: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 if ordered today

Richmond Gear EXCel Mini Spools XL-5140

Mini Spool, MINI SPOOL GM 10 BOLT 8.5"

Part Number: RMG-XL-5140

Not Yet Reviewed

Estimated Ship Date: Mar 31, 2026 if ordered today

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Estimated Ship Date: Mar 31, 2026 if ordered today

Currie 9 in. Crate Rear End Assemblies CR-GA130TWAB

Crate Axle, 64-66 GM A-Body Centurion 9-Inch, Black PC, 31-Spline, 3.00 Ratio, Helical Limited Slip, Wilwood 11" Dynapro Black Calipers

Part Number: CUR-CR-GA130TWAB

Not Yet Reviewed

Estimated Ship Date: Apr 16, 2026 if ordered today

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Estimated Ship Date: Apr 16, 2026 if ordered today

Currie 9 in. Crate Rear End Assemblies CR-GA230TEBB

Crate Axle, 68-72 GM A-Body Centurion 9-Inch, Black PC, 31-Spline, 3.00 Ratio, Helical Limited Slip, 11" Explorer Disc

Part Number: CUR-CR-GA230TEBB

Not Yet Reviewed

Estimated Ship Date: Apr 16, 2026 if ordered today

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Estimated Ship Date: Apr 16, 2026 if ordered today

Currie 9 in. Crate Rear End Assemblies CR-GA237TNBB

68-72 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-GA237TNBB

Not Yet Reviewed

Estimated Ship Date: Apr 16, 2026 if ordered today

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Estimated Ship Date: Apr 16, 2026 if ordered today

USA Standard Gear Spider Gear Sets ZIKGM8.5-S-30

USA Standard Gear standard spider gear set for GM 8.5", 30 spline

Part Number: SPZ-39027

Not Yet Reviewed

Estimated Ship Date: Mar 27, 2026 if ordered today

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Estimated Ship Date: Mar 27, 2026 if ordered today

Yukon Gear & Axle 30 Spline Differential Carrier Cases GM 8.875 Inch (12-bolt) YC GM12P-DG-3

Differential Carrier Case, Limited Slip Carrier Style, 30-spline, Nodular Iron, Rear, GM 8.875 in. (12-bolt) Pass. Car, Buick, Chevy, Pontiac, Each

Part Number: YGA-20104

Not Yet Reviewed

Estimated Ship Date: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 if ordered today

Yukon Gear & Axle Differential Crush Sleeves YSPCS-029

63-64 Oldsmobile drop out crush sleeve

Part Number: YGA-33112

Not Yet Reviewed

Estimated Ship Date: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 if ordered today

USA Standard Gear Axle Shafts, Direct Fit ZA K630849

Axle 8.2" BUICK/ OLDS/ PONTIAC REAR, 29-7/8", 28spl, with SEALED BALL BEARING

Part Number: SPZ-12228

Not Yet Reviewed

Estimated Ship Date: Mar 23, 2026 if ordered today

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Estimated Ship Date: Mar 23, 2026 if ordered today

Powertrax Grip Pro Traction Systems GM 7.75 Inch IRS GT204628

Differential, Grip Pro Traction System, 28-Spline, GM 7.75 in. IRS, Each

Part Number: PWT-GT204628

Not Yet Reviewed

Estimated Ship Date: Apr 28, 2026 if ordered today

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Estimated Ship Date: Apr 28, 2026 if ordered today

Powertrax Replacement Drivers 424003DGE2

SLOTTED DRIVER

Part Number: PWT-424003DGE2

Not Yet Reviewed

Estimated Ship Date: Apr 28, 2026 if ordered today

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Estimated Ship Date: Apr 28, 2026 if ordered today

USA Standard Gear Spools and Mini Spools ZP MINSGM8.5-28

8.5" GM 28spl MINI SPOOL

Part Number: SPZ-59011

Not Yet Reviewed

Estimated Ship Date: Mar 23, 2026 if ordered today

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Estimated Ship Date: Mar 23, 2026 if ordered today

Motive Gear Basic Ring and Pinion Gear Installation Kits R10RET

Ring and Pinion Installation Kit, Basic, GM 8.5 in., Front/Rear, Kit

Part Number: MGR-R10RET

2.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 30, 2026 if ordered today

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Estimated Ship Date: Mar 30, 2026 if ordered today

USA Standard Gear Spartan Locker Replacement Crosspins SL XP-GM12

Crosspin, Replacement, Steel, Spartan, Rear, GM 8.875 in., Each

Part Number: SPZ-17023

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 27, 2026 if ordered today

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Estimated Ship Date: Mar 27, 2026 if ordered today

USA Standard Gear Posi 31 Spline Differential Carriers GM 8.5 Inch, O axle ZP PGM8.5O-3-31

Differential Carrier, Limited Slip, 31-Spline Axle, Oldsmobile, 8.5 in., Each

Part Number: SPZ-59006

Not Yet Reviewed

Estimated Ship Date: Mar 27, 2026 if ordered today

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Estimated Ship Date: Mar 27, 2026 if ordered today

Powertrax Differential Carrier Replacement Parts 1920604SAJ

SPACER

Part Number: PWT-1920604SAJ

Not Yet Reviewed

Estimated Ship Date: Apr 28, 2026 if ordered today

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Estimated Ship Date: Apr 28, 2026 if ordered today

Yukon Gear & Axle Differential Crush Sleeves YSPCS-030

Differential Crush Sleeves, 2.420 in. Tall, GM 8.5, 10 Bolt, Oldsmobile, Cutlass, Each

Part Number: YGA-33113

Not Yet Reviewed

Estimated Ship Date: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 if ordered today

Motive Gear Differential Shims GM12MSK

MASTER SHIM KIT GM12 BOLT TRUCK

Part Number: MGR-GM12MSK

Not Yet Reviewed

Estimated Ship Date: Mar 30, 2026 if ordered today

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Estimated Ship Date: Mar 30, 2026 if ordered today

Dorman Ring and Pinion Sets 697-802 GM 8.25 in. 3.55 Gears

Gear, Ring and Pinion, 3.55:1 Ratio, GM 8.25 in., Set

Part Number: RNB-697-802

Not Yet Reviewed

Estimated Ship Date: Apr 1, 2026 if ordered today

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Estimated Ship Date: Apr 1, 2026 if ordered today

Yukon Gear & Axle Ring and Pinion Gears YGK2323

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

Part Number: YGA-12614

Not Yet Reviewed

Estimated Ship Date: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 if ordered today

Yukon Gear & Axle Ring and Pinion Gears YGK2338

Ring and Pinion Gears and Installation Kit, 8.5" GM 3.90 REAR R&P GEAR/ INSTALL KIT PACKAGE with 28spl POSI & AK 1563 AXLE BRGS (2.25" OD)

Part Number: YGA-12629

Not Yet Reviewed

Estimated Ship Date: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 if ordered today

Dorman Ring and Pinion Sets 697-138 GM 8.875 in. (12-bolt) passenger car 3.73 Gears

Gear, Ring and Pinion, 3.73:1 Ratio, GM 8.875 in. (12-Bolt), Set

Part Number: RNB-697-138

Not Yet Reviewed

Estimated Ship Date: Apr 1, 2026 if ordered today

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Estimated Ship Date: Apr 1, 2026 if ordered today

Yukon Gear & Axle 28/30 Spline Differential Carrier Cases GM 8.5/8.6 Inch YC GM8.5-DG-3

Yukon Dura Grip case, GM 8.5" & 8.6", 2.73 & up

Part Number: YGA-20107

Not Yet Reviewed

Estimated Ship Date: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 if ordered today

USA Standard Gear Spartan Locker Replacement Crosspins SL XP-GM8.5

Crosspin, Replacement, Steel, Spartan, GM 8.5 in., Each

Part Number: SPZ-17024

Not Yet Reviewed

Estimated Ship Date: Mar 30, 2026 if ordered today

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Estimated Ship Date: Mar 30, 2026 if ordered today