1981 CHEVROLET K20 Motive Gear Parts and Accessories

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

Part Number: MGR-R10R

4.2 out of 5 stars ( 5 )

Estimated Ship Date: Tomorrow

Mini Spool, Steel, 28-Spline, GM 8.5 in., Each

Part Number: MGR-MS10-28

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Tomorrow

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

Part Number: MGR-R10RPK

Not Yet Reviewed

Estimated Ship Date: Tomorrow

Differential Pinion Bearing Kit, GM 8.875 in. Truck, Koyo Bearings, Chevy, GMC, Kit

Part Number: MGR-R12RPK

Not Yet Reviewed

Estimated Ship Date: Tomorrow

Spool, Mini, Steel, 30-Spline, 12-Bolt, GM 8.875 in., Each

Part Number: MGR-MS12C

3.38 out of 5 stars ( 8 )

Estimated Ship Date: Tomorrow

Ring Gear Spacer, 0.200 in. Thick, 10-bolt, GM 8.5 in., Each

Part Number: MGR-085050

4.5 out of 5 stars ( 6 )

Estimated Ship Date: Mar 16, 2026 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: Mar 16, 2026 if ordered today

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Ring and Pinion Installation Kit, Basic, GM 8.875 in. 12-Bolt, Rear, Kit

Part Number: MGR-R12R

2.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 13, 2026 if ordered today

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Pinion Bearing Kit, PK GM 8.875" TRUCK

Part Number: MGR-R12RTPK

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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SOLID PINION SPACER, 12 BOLT TRUCK

Part Number: MGR-4107

Not Yet Reviewed

Estimated Ship Date: Mar 13, 2026 if ordered today

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Ring and Pinion Installation Kit, GM, 8.875 in., Passenger Car, Kit

Part Number: MGR-GM12IK

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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