BUICK Differential & Rear-End Components

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: Feb 20, 2026 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: Mar 3, 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: Feb 18, 2026 if ordered today

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Ring and Pinion Kit

Part Number: RMG-XL-1016-1

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Axle Shaft, 26-Spline, 30.50 in. Length, Buick, Chevy, Oldsmobile, Pontiac, 7.5 in., Rear, Each

Part Number: RMG-92-25125

5.0 out of 5 stars ( 1 )

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INTERNAL DRIVE

Part Number: PWT-1930404DGX

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Axle, Rear, 26-Spline, 30.5 in. Length, GM, 7.50 in. Axle, Each

Part Number: RNB-630-113

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Axle Shaft, Rear, 30-spline Inner, 5 x 5.00 in. Wheel Stud Pattern, 31.813 in. Length, Buick, Chevy, Each

Part Number: RNB-630-118

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

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Yukon 1541H alloy right hand rear axle for GM 8.6"

Part Number: YGA-21568

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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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SHAFT ASM-FRT WHL DRV HALF

Part Number: ADO-84429771

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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 2, 2026 if ordered today

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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: Feb 23, 2026 if ordered today

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Ring and Pinion Installation Kit, Basic, GM 8.6 in., Front/Rear, Kit

Part Number: MGR-R10RL

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Feb 23, 2026 if ordered today

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

Part Number: RNB-697-802

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Estimated Ship Date: Feb 23, 2026 if ordered today

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Gear, Ring and Pinion, 3.73:1 Ratio, GM 8.25 in., Set

Part Number: RNB-697-803

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Estimated Ship Date: Feb 20, 2026 if ordered today

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Ring and Pinion Gear Installation Kit, 10-Bolt, 30 Pinion Spline Count, Gear Rotation Standard, Chevy, GMC, Buick, Pontiac, Oldsmobile, Cadillac, Kit

Part Number: ALY-352021

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Feb 23, 2026 if ordered today

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SLOTTED DRIVER

Part Number: PWT-424003DGE2

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Estimated Ship Date: Mar 23, 2026 if ordered today

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SPACER

Part Number: PWT-6241066SEG

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Estimated Ship Date: Mar 23, 2026 if ordered today

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DRIVER

Part Number: PWT-424080DGB2

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Estimated Ship Date: Mar 23, 2026 if ordered today

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COUPLER

Part Number: PWT-5201001CJR

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Estimated Ship Date: Mar 23, 2026 if ordered today

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COUPLER

Part Number: PWT-5201004CJY

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Estimated Ship Date: Mar 23, 2026 if ordered today

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COUPLER ASSEMBLY

Part Number: PWT-5201133CIS

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Estimated Ship Date: Mar 23, 2026 if ordered today

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Differential Parts Kit

Part Number: MGR-GM76BI

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Feb 20, 2026 if ordered today

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COUPLER

Part Number: PWT-1931504CAU

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Estimated Ship Date: Mar 23, 2026 if ordered today

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