BUICK SKYLARK Differential & Rear-End Components

SOLID SPACER & SHIM KIT GM12 BOLT CAR

Part Number: MGR-4101

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Estimated Ship Date: Jan 5, 2026 if ordered today

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Pinion Bearing Kit, PBK GM 8.875" CAR

Part Number: MGR-R12CRPK

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Estimated Ship Date: Jan 5, 2026 if ordered today

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

Part Number: YGA-33435

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Estimated Ship Date: Jan 16, 2026 if ordered today

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Differential Spool Bearing Kit; Fits GM 8.5 in. 10 Bolt; Incl. Bearings/Bearing Races

Part Number: RMG-29-0013-1

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Jan 5, 2026 if ordered today

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COUPLER

Part Number: PWT-1932504CCN

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Estimated Ship Date: Today

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

Part Number: SPZ-17024

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Estimated Ship Date: Jan 2, 2026 if ordered today

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Ring and Pinion Gear Installation Kit, Minimum Install, 27-spline, Standard Rotation, Rear, GM 7.5 in., GM 7.625 in., Kit

Part Number: YGA-12050

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Estimated Ship Date: Jan 19, 2026 if ordered today

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Differential Cover, 10-bolt, Steel, Natural, GM 7.5 in., GM 7.625 in., Each

Part Number: YGA-32331

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Estimated Ship Date: Jan 13, 2026 if ordered today

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SPACER

Part Number: PWT-1920604SAJ

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Estimated Ship Date: Feb 3, 2026 if ordered today

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Ring and Pinion Gear Installation Kit, Minimum Install, 27-spline, Standard Rotation, Rear, GM 8.2 in., BOP Axle, Kit

Part Number: YGA-12054

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Estimated Ship Date: Jan 19, 2026 if ordered today

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