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BUICK ROADMASTER Motive Gear Differential & Rear-End Components

Showing In Stock Items. Show All 36 Items.

Individual Parts

Part Groups

Results 1 - 25 of 27

Motive Gear Ring and Pinion Sets GM10-373 GM 8.5/8.6 in. 3.73 Gears

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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Motive Gear Ring and Pinion Sets GM10-411A GM 8.5/8.6 in. 4.11 Gears

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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Motive Gear Ring and Pinion Sets GM10-342A GM 8.5/8.625 in. 3.42 Gears

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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Motive Gear Ring and Pinion Sets GM10-456A GM 8.5/8.625 in. 4.56 Gears

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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Motive Gear Ring and Pinion Sets GM7.5-410A GM 7.5/7.625 in. 4.10 Gears

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 )

Estimated Ship Date: Today

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Motive Gear Master Ring and Pinion Installation Kits R10RMKT

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

Part Number: MGR-R10RMKT

4.5 out of 5 stars ( 16 )

Estimated Ship Date: Today

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Motive Gear Performance Ring and Pinion Sets G885373 GM 8.5/8.6 in. 3.73 Gears

Gear, Ring and Pinion, 3.73:1 Ratio, GM, 8.5/8.6 in., Set

Part Number: MGR-G885373

4.8 out of 5 stars ( 5 )

Estimated Ship Date: Today

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Motive Gear 30 Spline Differential Carrier Cases GM 8.625 Inch GM8.6L

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

Part Number: MGR-GM8-6L

4.0 out of 5 stars ( 9 )

Estimated Ship Date: Today

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Motive Gear Ring and Pinion Sets GM10-308A GM 8.5 in. 3.08 Gears

Ring and Pinion-GM 8.5/8.625

Part Number: MGR-GM10-308A

Not Yet Reviewed

Estimated Ship Date: Feb 10, 2026 if ordered today

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Estimated Ship Date: Feb 10, 2026 if ordered today

Motive Gear Master Ring and Pinion Installation Kits R10REMKT

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 )

Estimated Ship Date: Today

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Motive Gear Mini Spools MS7.5-26

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

Part Number: MGR-MS75-26

4.8 out of 5 stars ( 25 )

Estimated Ship Date: Today

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Motive Gear Master Ring and Pinion Installation Kits R10REMK

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

Part Number: MGR-R10REMK

4.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Motive Gear Super Ring and Pinion Gear Installation Kits R10RSKT

Ring and Pinion Gear Installation Assembly, Super Bearing Set - Timken, Rear, 2.25 in. O.D. Axle Bearing, GM, 8.5 in., 10-Bolt, Kit

Part Number: MGR-R10RSKT

4.0 out of 5 stars ( 4 )

Estimated Ship Date: Feb 10, 2026 if ordered today

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Estimated Ship Date: Feb 10, 2026 if ordered today

Motive Gear Open Differential Internal Kits GM10BI-30

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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Motive Gear Super Ring and Pinion Gear Installation Kits R7.5GRSK

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

Part Number: MGR-R75GRSK

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Motive Gear Full Spools FS10-28

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 )

Estimated Ship Date: Today

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Motive Gear Spline Differential Carrier Cases GM 7.625 Inch GM7.6E

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

Part Number: MGR-GM7-6E

Not Yet Reviewed

Estimated Ship Date: Today

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Motive Gear Super Ring and Pinion Gear Installation Kits R7.5GRSKT

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

Part Number: MGR-R75GRSKT

4.4 out of 5 stars ( 5 )

Estimated Ship Date: Today

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Motive Gear Master Ring and Pinion Installation Kits R7.5GRMKT

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 )

Estimated Ship Date: Today

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Motive Gear Basic Ring and Pinion Gear Installation Kits R7.5GR

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

Part Number: MGR-R7-5GR

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Motive Gear Basic Ring and Pinion Gear Installation Kits R10RE

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

Part Number: MGR-R10RE

Not Yet Reviewed

Estimated Ship Date: Feb 10, 2026 if ordered today

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Estimated Ship Date: Feb 10, 2026 if ordered today

Motive Gear Full Spools FS10-30

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 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Motive Gear Super Ring and Pinion Gear Installation Kits R10RSK

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 10, 2026 if ordered today

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Estimated Ship Date: Feb 10, 2026 if ordered today

Motive Gear Basic Ring and Pinion Gear Installation Kits R10RET

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

Part Number: MGR-R10RET

2.0 out of 5 stars ( 1 )

Estimated Ship Date: Feb 10, 2026 if ordered today

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Estimated Ship Date: Feb 10, 2026 if ordered today

Motive Gear Differential Carrier Rebuild Kits and Spider Gears GM7.6BI

Differential Parts Kit

Part Number: MGR-GM76BI

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Feb 10, 2026 if ordered today

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Estimated Ship Date: Feb 10, 2026 if ordered today

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