BUICK Differential & Rear-End Components

Gear, Ring and Pinion, EXCel, 4.56:1 Ratio, GM, 8.875 in., 12-Bolt Car, Set

Part Number: RMG-12BC456

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Estimated Ship Date: Nov 10, 2025 if ordered today

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Ring and Pinion Gear Installation Kit, Bearing Overhaul, 25 Spline, GM 8.2 in. BOP, Kit

Part Number: YGA-11066

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Estimated Ship Date: Nov 19, 2025 if ordered today

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Differential Carrier Rebuild Kits and Spider Gears, GM 8.5 in., Side Gears, Rear, Open, 28-spline, 10-bolt, GM 8.5 in., Kit

Part Number: SVL-10020477

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Estimated Ship Date: Nov 3, 2025 if ordered today

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Axle Shaft

Part Number: MGR-22506477

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Estimated Ship Date: Nov 10, 2025 if ordered today

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Differential Main Cap Studs, GM, Kit

Part Number: YGA-32271

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Estimated Ship Date: Nov 19, 2025 if ordered today

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SHAFT ASM-FRT WHL DRV HALF

Part Number: ADO-84283521

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Estimated Ship Date: Nov 14, 2025 if ordered today

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Spool, Full Size, Steel, 30-Spline, 10-Bolt, GM 8.5 in., Each

Part Number: RMG-81-1030-1

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Estimated Ship Date: Nov 10, 2025 if ordered today

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

Part Number: SPZ-39027

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Estimated Ship Date: Nov 4, 2025 if ordered today

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Axle Shaft, OEM Replacement, 30-Spline, 30.375 in. Length, GM, 8.5 in., Rear, Each

Part Number: RMG-92-25100

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Estimated Ship Date: Nov 10, 2025 if ordered today

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Ring and Pinion Installation Kit, Basic, GM 8.2 in. BOP Axle, Rear, Kit

Part Number: MGR-R8-5PRT

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Estimated Ship Date: Nov 11, 2025 if ordered today

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Spider Gears, Side Gears, Cross Shaft Pin, Thrust Washers, 30 Spline, Open, Rear, GM 8.6 in., Kit

Part Number: YGA-16146

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Estimated Ship Date: Nov 19, 2025 if ordered today

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Ring and Pinion Installation Kit, GM, 8.25 in. IFS, Kit

Part Number: MGR-R82RIFSL

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Estimated Ship Date: Nov 11, 2025 if ordered today

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Ring and Pinion Gear Installation Kit, Minimum Install, 30-spline, Standard Rotation, Rear, GM 8.875 in. (12-bolt) Passenger Car, Kit

Part Number: YGA-12043

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Estimated Ship Date: Nov 19, 2025 if ordered today

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

Part Number: MGR-R10RTPK

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Estimated Ship Date: Nov 10, 2025 if ordered today

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Ring and Pinion Gears, 3.08:1 Ratio, GM, 8.5/8.6 in., Set

Part Number: ALY-GM10308

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Estimated Ship Date: Oct 27, 2025 if ordered today

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Ring & Pinion Gear Set GM 10 Bolt 8.5" / 3.42 Ratio

Part Number: SVL-2020642

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Estimated Ship Date: Nov 3, 2025 if ordered today

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Drive Axle Shaft Assembly, Front Axle Shaft Assembly

Part Number: RNB-630-417

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Estimated Ship Date: Nov 10, 2025 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

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Estimated Ship Date: Nov 10, 2025 if ordered today

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Axle Shafts, GM Genuine Parts CV Drive Axles, 34-spline Inner, Steel, 19.64 in. Length, Front Right, Buick, Chevrolet, Each

Part Number: ADO-13390552

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Estimated Ship Date: Oct 27, 2025 if ordered today

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SIDE GEARS

Part Number: SPZ-39028

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

Part Number: RMG-12BC342

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Estimated Ship Date: Nov 10, 2025 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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Estimated Ship Date: Nov 19, 2025 if ordered today

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

Part Number: RNB-697-102

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Estimated Ship Date: Nov 10, 2025 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: Nov 3, 2025 if ordered today

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Differential Inner Gear Kit; GM 7.5/7.6 - 26 Spline, Dura Grip Positraction

Part Number: SVL-10003707

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Estimated Ship Date: Nov 3, 2025 if ordered today

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