BUICK ROADMASTER Motive Gear Differential & Rear-End Components

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

Part Number: MGR-R10RMK

4.29 out of 5 stars ( 17 )

Estimated Ship Date: Today

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Ring and Pinion Gears, 4.11:1 Ratio, 30-spline, Standard Rotation, GM 8.5 in., GM 8.6 in., Set

Part Number: MGR-GM10-411A

4.67 out of 5 stars ( 6 )

Estimated Ship Date: Today

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Gear, Ring and Pinion, 3.73 Ratio, GM, 8.5 in/8.6 in., Set

Part Number: MGR-GM10-373

4.74 out of 5 stars ( 19 )

Estimated Ship Date: Today

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Ring and Pinion Gears, 3.42:1 Ratio, 30-spline, Standard Rotation, GM 8.5 in., GM 8.6 in., Set

Part Number: MGR-GM10-342A

4.5 out of 5 stars ( 16 )

Estimated Ship Date: Today

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Ring and Pinion Installation Kit, GM 7.5/7.625 in., Rear, Kit

Part Number: MGR-R75GRMK

5.0 out of 5 stars ( 3 )

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Ring and Pinion Gears, 4.56:1 Ratio, 30-spline, Standard Rotation, GM 8.5 in., GM 8.6 in., Set

Part Number: MGR-GM10-456A

4.46 out of 5 stars ( 13 )

Estimated Ship Date: Today

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Ring and Pinion Gears, GM 7.5/7.625 in., 4.10:1 Ratio, 27-spline, Standard Rotation, Buick, Cadillac, Chevy, GMC, Hummer, Isuzu, Olds, Pontiac, Set

Part Number: MGR-GM7-5-410A

5.0 out of 5 stars ( 3 )

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Spool, Mini, Steel, 26-Spline, 10-Bolt, GM 7.5 in., Each

Part Number: MGR-MS75-26

4.79 out of 5 stars ( 24 )

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Differential Carrier, Open, GM 8.625 in., 30-Spline, Each

Part Number: MGR-GM8-6L

4.0 out of 5 stars ( 9 )

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

Part Number: MGR-R10RMKT

4.5 out of 5 stars ( 16 )

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

Part Number: MGR-R10REMKT

4.0 out of 5 stars ( 7 )

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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 )

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

Part Number: MGR-FS10-28

4.67 out of 5 stars ( 3 )

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

Part Number: MGR-R10REMK

4.0 out of 5 stars ( 2 )

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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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Ring and Pinion

Part Number: MGR-GM75-323

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Differential Carrier, Open, GM 7.625 in., 3.23 and higher ratio, Each

Part Number: MGR-GM7-6E

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

Part Number: MGR-FS10-30

5.0 out of 5 stars ( 4 )

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

Part Number: MGR-R75GRSK

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

Part Number: MGR-R75GRSKT

4.4 out of 5 stars ( 5 )

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Ring and Pinion Installation Kit, Master Kit, GM 7.5 in., 7.625 in., Kit

Part Number: MGR-R75GRMKT

4.0 out of 5 stars ( 2 )

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Gear, Ring and Pinion, 3.08:1 Ratio, GM, 7.5 in., Set

Part Number: MGR-GM75-308

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Oct 10, 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

Not Yet Reviewed

Estimated Ship Date: Oct 8, 2025 if ordered today

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Ring and Pinion-GM 8.5/8.625

Part Number: MGR-GM10-373A

Not Yet Reviewed

Estimated Ship Date: Oct 9, 2025 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: Oct 9, 2025 if ordered today

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