BUICK Differential & Rear-End Components

Bearing Race, Differential Pinion, 3.750 in. Diameter, Cadillac, Each

Part Number: TMK-HM804810

Not Yet Reviewed

Estimated Ship Date: Today

Gear, Ring and Pinion, 4.88:1 Ratio, GM, 8.5/8.6 in., 10-Bolt, 3 Series, Set

Part Number: RMG-6901691

4.6 out of 5 stars ( 5 )

Estimated Ship Date: Today

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Differential Carrier Rebuild Kits and Spider Gears, GM 8.5 in., Side Gears, 28-spline, 10-bolt, Buick, Chevrolet, GMC, Oldsmobile, Pontiac, Kit

Part Number: SPZ-39026

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Axle Shaft, 30-spline, 30.375 in. Length, Rear, GM 8.5 in., GM 8.6 in., Chevy, Each

Part Number: SPZ-35107

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Differential, No-Slip Traction System, 30-Spline, GM, 8.5 in., Each

Part Number: PWT-92-0785-3005

4.75 out of 5 stars ( 4 )

Estimated Ship Date: Nov 13, 2025 if ordered today

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Ring and Pinion Installation Kit, Basic, GM 8.6 in., Kit

Part Number: MGR-R10RLPK

Not Yet Reviewed

Estimated Ship Date: Today

Pinion Nut Washer, Each

Part Number: YGA-33166

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Today

Gear, Ring and Pinion, 4.56:1 Ratio, GM, 8.5/8.6 in., Set

Part Number: MGR-G885456

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Differential Pinion Bearing Kit, GM 8.875 in. Car, Timken Bearings, Chevy, GMC, Kit

Part Number: MGR-R12CRTPK

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Differential Parts Kit, Open Differential, Includes 30-spline Side and Pinion Gears/Washers/Pinion Shaft/Bolt

Part Number: MGR-GM-10BI-30

4.9 out of 5 stars ( 10 )

Estimated Ship Date: Today

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Ring and Pinion Gear Installation Kit, Minimum Installation Kit, 30 Spline, GM 8.6 in., Kit

Part Number: YGA-12059

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Nov 19, 2025 if ordered today

• Drop Ship
• Special Order

Cross Pin, GM, 12-Bolt, 8.875 in., Each

Part Number: MGR-3931175

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Gear, Ring and Pinion, 4.10:1 Ratio, GM, 7.25 in. IFS, Set

Part Number: MGR-GM7-2-410IFS

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Estimated Ship Date: Today

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Cross Pin, GM, 10-Bolt, 8.5 in. Each

Part Number: MGR-14006401

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Axle Shafts, New CV Drive Axles, Front Right, Buick, Chevrolet, Oldsmobile, Pontiac, Each

Part Number: AAZ-66-1250

3.33 out of 5 stars ( 3 )

Estimated Ship Date: Today

Axles, Direct Fit, C-Clip, Rear, 1541H Steel, 28-Spline, GM G-Body, 7.5 in., Each

Part Number: MSR-A102801-1

Not Yet Reviewed

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Pinion Nut, Steel, Each

Part Number: YGA-33152

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

Crush Sleeve, Steel, 0.620 in. Tall, Each

Part Number: YGA-33097

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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

Part Number: YGA-10637

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Estimated Ship Date: Today

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Differential Cover, Aluminum Girdle Cover, Natural, 12-bolt, GM 8.875 in. Passenger Car, Each

Part Number: YGA-32116

Not Yet Reviewed

Estimated Ship Date: Nov 3, 2025 if ordered today

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• Special Order

Differential Parts Kit; Open Differential Internal Kit; Incl. Side And Pinion Gears/Washers/Pinion Shaft And L

Part Number: MGR-GM12BI

Not Yet Reviewed

Estimated Ship Date: Today

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Bearing Race, Differential Pinion, 2.531 in. Outside Diameter, Each

Part Number: TMK-M86610

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Carrier Shims, Steel, Dana 44, Kit

Part Number: YGA-55010

1.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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

Part Number: MGR-R10RSKT

4.0 out of 5 stars ( 4 )

Estimated Ship Date: Today

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

Part Number: YGA-32014

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today