BUICK SKYLARK Differential & Rear-End Components

Axle, Rear, 28-Spline, 29.625 in. Length, Buick, Cadillac, Chevy, Oldsmobile, Pontiac, 8.50 in. Axle, Each

Part Number: RNB-630-140

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Mar 3, 2026 if ordered today

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USA Standard Gear standard spider gear set for GM 7.5", 26 spline

Part Number: SPZ-39023

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Estimated Ship Date: Feb 26, 2026 if ordered today

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Ring and Pinion Kit

Part Number: RMG-XL-1040-1

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Estimated Ship Date: Mar 2, 2026 if ordered today

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Differential Inner Gear Kit; GM 8.5 - 30 Spline, Open Diff

Part Number: SVL-10020478

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Ring and Pinion Gears, GM 7.5/7.6 in., 3.08:1 Ratio, 27-spline, Standard Rotation, GM 7.5/7.6 in., Set

Part Number: SVL-2019331

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Estimated Ship Date: Feb 24, 2026 if ordered today

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Differential Carrier Gear Kit

Part Number: RMG-XL-4040

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Estimated Ship Date: Mar 2, 2026 if ordered today

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Gear, Ring and Pinion, 4.56:1 Ratio, GM, 7.5 in., Set

Part Number: MGR-GM75-456

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Estimated Ship Date: Mar 3, 2026 if ordered today

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Ring and Pinion Kit

Part Number: RMG-XL-1019-1

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Estimated Ship Date: Mar 2, 2026 if ordered today

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Gear, Ring and Pinion, 4.10:1 Ratio, GM 7.5/7.625 in., Set

Part Number: RNB-697-306

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Estimated Ship Date: Mar 2, 2026 if ordered today

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

Part Number: RMG-81-1028-1

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 3, 2026 if ordered today

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Ring and Pinion Gear Installation Kit, Minimum Overhaul, GM, 8.2 in., Kit

Part Number: YGA-13068

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Differential Carrier Gear Kit

Part Number: RMG-XL-4058

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Estimated Ship Date: Mar 2, 2026 if ordered today

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USA Standard Master Overhaul kit for the '81 & older GM 7.5" differential

Part Number: SPZ-37048

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Estimated Ship Date: Feb 27, 2026 if ordered today

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

Part Number: RNB-697-807

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Estimated Ship Date: Mar 3, 2026 if ordered today

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

Part Number: YGA-13069

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Estimated Ship Date: Mar 16, 2026 if ordered today

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

Part Number: SPZ-58011

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Estimated Ship Date: Feb 27, 2026 if ordered today

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Ring and Pinion Installation Kit, Basic, GM 8.875 in. 12-Bolt, Rear, Kit

Part Number: MGR-R12CRT

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Estimated Ship Date: Mar 2, 2026 if ordered today

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Axle Shaft, OEM Replacement, C-clip, 1541H Alloy Steel, 30-spline Inner, 30.063 in. Length, Each

Part Number: MGR-MG1000

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Estimated Ship Date: Mar 2, 2026 if ordered today

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Ring and Pinion Kit

Part Number: RMG-XL-1016-1

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

Part Number: MGR-R10RE

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Estimated Ship Date: Mar 2, 2026 if ordered today

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INTERNAL DRIVE

Part Number: PWT-1930404DGX

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Ring and Pinion Installation Kit, GM, 8.5 in., 10-Bolt, Kit

Part Number: RNB-697-100

3.0 out of 5 stars ( 1 )

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Posi spring kit for GM 7.5", with preload plates

Part Number: YGA-33206

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Estimated Ship Date: Mar 10, 2026 if ordered today

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COUPLER ASSEMBLY

Part Number: PWT-5201133CIS

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Estimated Ship Date: Mar 31, 2026 if ordered today

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SPACER

Part Number: PWT-6241066SEG

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Estimated Ship Date: Mar 31, 2026 if ordered today

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