1981 CHEVROLET K20 Motive Gear Parts and Accessories

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

Part Number: MGR-14006401

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Estimated Ship Date: Today

Gear, Ring and Pinion, 3.73:1 Ratio, GM, 10.5 in., 14-Bolt, Set

Part Number: MGR-GM10-5-373

4.75 out of 5 stars ( 4 )

Estimated Ship Date: Today

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

Part Number: MGR-3931175

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

DIFFERENTIAL

Part Number: MGR-MGK-213

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Estimated Ship Date: Jan 23, 2026 if ordered today

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Gear, Ring and Pinion, 4.56:1 Ratio, GM, 12-Bolt, Truck, Set

Part Number: MGR-GM12-456

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Gear, Ring and Pinion, 5.13:1 Ratio, GM, 8.5/8.6 in., Set

Part Number: MGR-G885513

4.67 out of 5 stars ( 3 )

Estimated Ship Date: Today

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Differential Shims, Pinion Shim Type, Steel, Set

Part Number: MGR-1100

3.86 out of 5 stars ( 7 )

Estimated Ship Date: Today

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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RANGE FORK

Part Number: MGR-4167966R

5.0 out of 5 stars ( 4 )

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Axle Shaft, OEM Replacement, Front Inner and Outer, Passenger Side, 1541H Manganese, 28/19-spline, 29.090 in. Length, GMC, Kit

Part Number: MGR-GM10FAXR

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Gear, Ring and Pinion, 4.30:1 Ratio, GM, 8.5/8.6 in., 10-Bolt, Set

Part Number: MGR-GM10-430

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Gear, Ring and Pinion, 4.56:1 Ratio, GM, 8.5/8.6 in., 10-Bolt, Set

Part Number: MGR-GM10-456

4.5 out of 5 stars ( 4 )

Estimated Ship Date: Today

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Ring Gear Fasteners, Replacement Bolt, Hex Head, Steel, Black Oxide, 1/2-20 in. RH, GM, 10.5 in., 14 Bolt, 4.10 and Lower Carrier, Each

Part Number: MGR-331422

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Gear, Ring and Pinion, 2.73:1 Ratio, GM, 8.5/8.6 in., Set

Part Number: MGR-G885273

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Differential Ring and Pinion, Differential Ring and Pinon Front and Rear Complete Kit

Part Number: MGR-MGK-212

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Estimated Ship Date: Jan 26, 2026 if ordered today

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Ring and Pinion-GM 8.875

Part Number: MGR-GM12-456A

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Estimated Ship Date: Jan 26, 2026 if ordered today

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Ring Gear Fasteners, Replacement Bolt, Hex Head, Steel, Black Oxide, 12mm x 1.50, GM 9.25/9.5 in., Chrysler 9.25 in., Each

Part Number: MGR-14012703

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Differential Shims, Pinion, Steel, Kit

Part Number: MGR-1104

3.83 out of 5 stars ( 6 )

Estimated Ship Date: Today

Crush Sleeve, Steel, GM 8.875 in. (12-bolt), Truck, Each

Part Number: MGR-3954482

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

Part Number: MGR-GM14BI

5.0 out of 5 stars ( 1 )

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Gear, Ring and Pinion, 3.08:1 Ratio, GM, 8.5/8.6 in., Set

Part Number: MGR-G885308

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Jan 26, 2026 if ordered today

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Differential Cover Gasket, Paper, GM 8.5/8.625 in., Each

Part Number: MGR-3993593

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

Ring and Pinion Installation Kit, Super Kit, GM, 8.875 in., Kit

Part Number: MGR-R12RSK

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Estimated Ship Date: Jan 23, 2026 if ordered today

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Differential Carrier Rebuild Kits and Spider Gears, Open Differential Internal Kits, GM 9.25/9.25 IFS/9.5 in., 33-spline, 14-bolt, Chevy, Dodge, Kit

Part Number: MGR-GM95BI

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Gear, Ring and Pinion, 4.56:1 Ratio, GM, 9.5 in., 14-Bolt, Truck, Set

Part Number: MGR-GM9-5-456

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Today

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