1981 GMC K1500 Transmission & Drivetrain

Throwout Bearing, 1.375 in. Shaft Diameter, Buick, Chevy, GMC, Oldsmobile, Pontiac, Each

Part Number: HAY-70-104

5.0 out of 5 stars ( 6 )

Estimated Ship Date: Today

Torque Converters, MR Series, Hard Hitting, 1.703 in. Crank Pilot Diameter, 30-spline, 9.500 in. Diameter, Race Usage, TH350, TH400, Each

Part Number: FTI-MR3380

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Estimated Ship Date: Apr 6, 2026 if ordered today

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Performance Mini Spool (GM 8.5 - 30 Spline)

Part Number: SDH-10015388

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Differential Yoke, Steel, 1350, 30 Spline, GM 8.5 in. Kit

Part Number: RMG-96-2521K

1.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Clutch Assembly, 342.9mm Clutch Diameter, 301.63mm Clutch Disc Diameter, 10-Spline, 5-Spring, 1.125 in. Input Shaft Diameter, GM, L6, V8, Kit

Part Number: LUK-04-105

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Clutch Kit, Concept 10.5 Dual-Disc Clutch, 1.125 in. - 10-spline, Organic Disc, Pressure Plate, Chevy, Small Block, Kit

Part Number: RAM-50-2120

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Differential Shims, Carrier, Steel, Kit

Part Number: MGR-SS10

4.89 out of 5 stars ( 9 )

Estimated Ship Date: Today

Ring and Pinion Installation Kit, Master Kit, GM, 9.5 in., 14-Bolt, Kit

Part Number: MGR-R9-5GRMKT

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Today

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Pinion Shims, Steel, Kit

Part Number: YGA-55009

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Today

Clutch Kit, Organic, 1 1/8 in. Diameter Shaft, 10-Spline, 12 in. Diameter Disc, Chevy, GMC, Pickup, SUV, Kit

Part Number: HAY-90-103

3.38 out of 5 stars ( 8 )

Estimated Ship Date: Mar 26, 2026 if ordered today

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Wheel Bearing Seal, Chevy, GMC, Dodge, Plymouth, Jeep, Each

Part Number: TMK-471271

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

Torque Converters, Twister 3/4 Race, Street/Strip, 2,800-3,200 rpm Stall Speed Range, 30-spline, 9.600 in. Diameter, Chevy THM400, Buick, Chevy, Each

Part Number: HAY-97-1D28Q

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Estimated Ship Date: Mar 27, 2026 if ordered today

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Gear, Ring and Pinion, 4.11:1 Ratio, GM, 12-Bolt Truck, 3 Series, Set

Part Number: RMG-6903501

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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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Clutch Disc, Dual Friction, 1.125 in.- 26-spline, 12 in. Diameter, Buick, Cadillac, Chevy, GMC, Olds, Pontiac

Part Number: CTF-DF382612

4.67 out of 5 stars ( 3 )

Estimated Ship Date: Today

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Throwout Bearing, 1400 Series, Hydraulic, 1.250 in. Diameter, Billet Aluminum Bearing, Mopar, A833, Each

Part Number: MCL-1406-10

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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: Mar 25, 2026 if ordered today

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Sprag, Intermediate, Steel, 34-Element, GM, TH400, Each

Part Number: TCI-227900

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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U-Joint, Spicer 1350 To GM 3RL/S44/Mechanics 3/American Axle 1344 Combination, Greasable, Steel, Each

Part Number: YGA-42001

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

Ring & Pinion Gear, 4.11 Ratio, GM, 8.875 in. Truck, Set

Part Number: YGA-24130

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

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Ring and Pinion Gears, 3.23:1 Ratio, GM 8.5 in., Set

Part Number: SVL-2023698

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Axles, Replacement, Driver Side, Passenger Side, Rear, Chevy, GMC, 8.875 in., Pair

Part Number: MSR-A30-70GMT4

4.25 out of 5 stars ( 4 )

Estimated Ship Date: Today

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Bearings, Rear Case, Shims, Automatic, TH400, Kit

Part Number: TCI-224400

4.92 out of 5 stars ( 12 )

Estimated Ship Date: Today

Axle Seal, Each

Part Number: TMK-5131

3.86 out of 5 stars ( 7 )

Estimated Ship Date: Today

Pinion Bearing, 1.437 in. i.d., BMW, Buick, Cadillac, Chevy, GMC, Chrysler, Dodge, Mercedes-Benz, Volvo, Each

Part Number: TMK-HM89449

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today