BUICK Differential & Rear-End Components Transmission & Drivetrain

Powertrax Replacement Couplers 1921504CAK

COUPLER

Part Number: PWT-1921504CAK

Not Yet Reviewed

Estimated Ship Date: Dec 28, 2026 if ordered today

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Estimated Ship Date: Dec 28, 2026 if ordered today

Motive Gear Performance Ring and Pinion Sets G875456 GM 7.5/7.625 in. 4.56 Gears

Gear, Ring and Pinion, 4.56:1 Ratio, GM, 7.5 in./7.625 in., 3 Series, Set

Part Number: MGR-G875456

Not Yet Reviewed

Estimated Ship Date: Nov 16, 2026 if ordered today

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Estimated Ship Date: Nov 16, 2026 if ordered today

Need It Sooner? We recommend these similar substitute parts:

Allstar Performance Ring and Pinion Gear Sets ALL70118 GM 7.5/7.625 in. 4.56 Gears

3.25 out of 5 stars ( 3 )

Estimated Ship Date: Today

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USA Standard Gear ZG Series Ring and Pinion Sets ZG GM12P-411T GM 8.875 in. (12-bolt) passenger car 4.11 Gears

USA Standard Ring & Pinion "thick" gear set for GM 12 bolt car in a 4.11 ratio

Part Number: SPZ-36171

Not Yet Reviewed

Estimated Ship Date: Nov 23, 2026 if ordered today

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Estimated Ship Date: Nov 23, 2026 if ordered today

USA Standard Gear ZG Series Ring and Pinion Sets ZG GM8.5-273 GM 8.5/8.6 in. 2.73 Gears

Gear, Ring and Pinion, 2.73:1, GM, 8.5 in., 8.6 in., Set

Part Number: SPZ-36346

Not Yet Reviewed

Estimated Ship Date: Nov 23, 2026 if ordered today

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Estimated Ship Date: Nov 23, 2026 if ordered today

Yukon Gear & Axle Differential Carrier Replacement Parts YSPTW-034

Thrust Washer, Open Differential, GM 8.5 in., Each

Part Number: YGA-33304

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Nov 23, 2026 if ordered today

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Estimated Ship Date: Nov 23, 2026 if ordered today

USA Standard Gear Bearing Kits ZBKGM7.5-B

Ring and Pinion, Installation Kit, GM, 7.5 in., 7.6 in., Kit

Part Number: SPZ-58015

Not Yet Reviewed

Estimated Ship Date: Nov 23, 2026 if ordered today

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Estimated Ship Date: Nov 23, 2026 if ordered today

USA Standard Gear Bearing Kits ZPKGM8.6-A

8.6" GM 99-08 PINION BRG & SEAL KIT, KOYO BRGS

Part Number: SPZ-60014

Not Yet Reviewed

Estimated Ship Date: Nov 23, 2026 if ordered today

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Estimated Ship Date: Nov 23, 2026 if ordered today

USA Standard Gear ZG Series Ring and Pinion Sets ZG GM7.5-411 GM 7.5/7.6 in. 4.11 Gears

Ring and Pinion Gears, 4.11:1 Ratio, 10-bolt, 27-spline, Standard Gear Rotation, GM, 7.5 in., Set

Part Number: SPZ-36199

Not Yet Reviewed

Estimated Ship Date: Nov 23, 2026 if ordered today

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Estimated Ship Date: Nov 23, 2026 if ordered today

USA Standard Gear Axle Shafts, Direct Fit ZA K630841

Axle 7.5" GM REAR, 28-7/16" LONG, MONTE CARLO & EL CAMINO, 26spl, 7/16 WHEEL STUDS

Part Number: SPZ-12220

Not Yet Reviewed

Estimated Ship Date: Nov 23, 2026 if ordered today

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Estimated Ship Date: Nov 23, 2026 if ordered today

Yukon Gear & Axle Ring and Pinion Sets YG GM12P-308 GM 8.875 in. (12-bolt) passenger car 3.08 Gears

Ring and Pinion Gears, 3.08:1 Ratio, 8.875 in. Ring Gear, GM 8.875 in. Passenger Car, Set

Part Number: YGA-24448

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Nov 23, 2026 if ordered today

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Estimated Ship Date: Nov 23, 2026 if ordered today

Excel Ring Pinion and Axle Differential Cross Shafts XL-5630

Pinion Shaft, SHAFT,GM 10-BOLT,7.5,RDF,NOSLP

Part Number: RMG-XL-5630

Not Yet Reviewed

Estimated Ship Date: Nov 11, 2026 if ordered today

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Estimated Ship Date: Nov 11, 2026 if ordered today

Dorman Ring and Pinion Sets 697-302 GM 7.5/7.625 in. 3.42 Gears

Gear, Ring and Pinion, 3.42:1 Ratio, GM 7.5/7.625 in., Set

Part Number: RNB-697-302

Not Yet Reviewed

Estimated Ship Date: Nov 10, 2026 if ordered today

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Estimated Ship Date: Nov 10, 2026 if ordered today

Dana Spicer Drivetrain Products Spools and Mini Spools 10015379

Performance Mini Spool (GM 8.875 - 30 Spline)

Part Number: SDH-10015379

Not Yet Reviewed

Estimated Ship Date: Nov 30, 2026 if ordered today

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Estimated Ship Date: Nov 30, 2026 if ordered today

USA Standard Gear Axle Shafts, Direct Fit ZA K630117

Axle 8.5" GM REAR91-96 PASS30-3/8", 30spl, 5 x 5 BP, METRIC 12mm STUDS, 1563 BRG, 1 SIDE

Part Number: SPZ-11933

Not Yet Reviewed

Estimated Ship Date: Nov 23, 2026 if ordered today

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Estimated Ship Date: Nov 23, 2026 if ordered today

Yukon Gear & Axle Differential Carrier Replacement Parts YSPCG-004

Clutch guide for GM 7.5" & 7.6" Yukon Dura Grip

Part Number: YGA-33251

Not Yet Reviewed

Estimated Ship Date: Nov 23, 2026 if ordered today

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Estimated Ship Date: Nov 23, 2026 if ordered today

Yukon Gear & Axle Ring and Pinion Gears YGK2334

Ring and Pinion Gears and Installation Kit, 8.5" GM 4.56 REAR R&P GEAR/ INSTALL KIT PACKAGE with AK 1563 AXLE BRGS (2.25" OD)

Part Number: YGA-12625

Not Yet Reviewed

Estimated Ship Date: Nov 23, 2026 if ordered today

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Estimated Ship Date: Nov 23, 2026 if ordered today

Yukon Gear & Axle Crosspins and Shafts YSPXP-054

Cross Pin Shaft, Notched, Steel, Rear, GM 7.5 in., GM 7.6 in., Each

Part Number: YGA-33435

Not Yet Reviewed

Estimated Ship Date: Nov 23, 2026 if ordered today

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Estimated Ship Date: Nov 23, 2026 if ordered today

Revolution Gear and Axle Ring and Pinion Gears GM7.5-342

GM 7.5 Inch 3.42 Ratio Ring and Pinion Revolution Gear

Part Number: RGA-GM7-5-342

Not Yet Reviewed

Estimated Ship Date: Nov 20, 2026 if ordered today

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Estimated Ship Date: Nov 20, 2026 if ordered today

Motive Gear Ring and Pinion Gear Installation Kits GM8.2IKFL

Ring and Pinion Bearing Kit

Part Number: MGR-GM82IKFL

Not Yet Reviewed

Estimated Ship Date: Nov 16, 2026 if ordered today

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Estimated Ship Date: Nov 16, 2026 if ordered today

Motive Gear Super Ring and Pinion Gear Installation Kits R10RSK

Ring and Pinion Installation Kit, Super Kit, GM, 8.5 in., Kit

Part Number: MGR-R10RSK

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Nov 16, 2026 if ordered today

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Estimated Ship Date: Nov 16, 2026 if ordered today

Richmond Gear Mega Ring and Pinion Installation Kits 83-1016-M

Kit installation complete for GM 77-81, 7.5

Part Number: RMG-83-1016-M

Not Yet Reviewed

Estimated Ship Date: Nov 10, 2026 if ordered today

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Estimated Ship Date: Nov 10, 2026 if ordered today

GSP New CV Axle Assemblies NCV10029

Axle Shafts, Direct Fit, New CV Axle Assembly, Steel, Each

Part Number: GNA-NCV10029

Not Yet Reviewed

Estimated Ship Date: Nov 4, 2026 if ordered today

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Estimated Ship Date: Nov 4, 2026 if ordered today

Yukon Gear & Axle Differential Cross Shafts YSPXP-053

12P & 12T GM NOTCHED X/PIN SHAFT STD & POSI

Part Number: YGA-33429

Not Yet Reviewed

Estimated Ship Date: Nov 16, 2026 if ordered today

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Estimated Ship Date: Nov 16, 2026 if ordered today

Yukon Gear & Axle Ring and Pinion Sets YG GM7.2-411R GM 7.2 in. IFS 4.11 Gears

Ring and Pinion Gears, 4.11:1 Ratio, 27-spline, Standard Rotation, GM 7.2 in., IFS, Set

Part Number: YGA-24473

Not Yet Reviewed

Estimated Ship Date: Nov 16, 2026 if ordered today

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Estimated Ship Date: Nov 16, 2026 if ordered today

SKF Bearings Differential Carrier Rebuild Kits and Spider Gears SDK320-MK

Differential master rebuild kit

Part Number: SKF-SDK320-MK

Not Yet Reviewed

Estimated Ship Date: Nov 16, 2026 if ordered today

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Estimated Ship Date: Nov 16, 2026 if ordered today