1981 CHEVROLET K20 Transmission & Drivetrain

Axle Bearing, Chevy, Dodge, Ford, GMC, Jeep, Each

Part Number: TMK-368A

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

Yokes, Slip Yokes, Spicer 1310, 16-spline Inner, Steel, 6.813 in. Overall Length, for Slip-style Driveshafts, Rear Differential Position, Each

Part Number: SDH-2-3-8001KX

Not Yet Reviewed

Estimated Ship Date: Monday 2/23/2026 if shipped by air

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

Part Number: TMK-471271

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

Gear, Ring and Pinion, 3.73:1 Ratio, GM, 9.5 in., 14-Bolt, Truck, Set

Part Number: MGR-GM9-5-373

4.25 out of 5 stars ( 4 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

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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: Monday 2/23/2026 if shipped by air

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

Part Number: RMG-6903501

Not Yet Reviewed

Estimated Ship Date: Monday 2/23/2026 if shipped by air

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Transmission Dipstick, Braided Stainless Steel, Natural, Transmission Mount, TH400, Each

Part Number: LOK-TD-3400TM

3.67 out of 5 stars ( 3 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

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Differential Shims, Carrier, Steel, Kit

Part Number: MGR-SS10

4.89 out of 5 stars ( 9 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

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: Monday 2/23/2026 if shipped by air

Flywheel, Steel, 168-Tooth, 40 lb., Internal Engine Balance, Chevy, Big, Small Block, Each

Part Number: HAY-10-140

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

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Seal, Inner Seal, Chevy, GMC, Rear, Each

Part Number: TMK-2081

4.33 out of 5 stars ( 3 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

Transmission Filter, Replacement, Each

Part Number: WIX-58878

4.55 out of 5 stars ( 20 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

Center Yoke, Spicer 1310, Steel, Each

Part Number: SDH-2-26-497

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

Seal, Automatic Transmission Shift Shaft, Steel/Rubber, GM, Each

Part Number: NTL-8792S

3.67 out of 5 stars ( 3 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

Differential, Eaton Detroit Locker, 28-Spline, GM, 8.5 in., 3-Series, Each

Part Number: ETN-187C149A

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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• Special Order

Pressure Plate Bolts, Hex Head, Steel, Black, 3/8 in.-16 Thread, Chevrolet, Chrysler, Dodge, Oldsmobile, Plymouth, Pontiac, Set of 6

Part Number: MCL-1512

5.0 out of 5 stars ( 4 )

Cannot be shipped Internationally if shipped by air

• Restricted

Gear, Ring and Pinion, 3.42:1 Ratio, GM, 8.875 in. Truck, Set

Part Number: MGR-GM12-342

Not Yet Reviewed

Estimated Ship Date: Monday 2/23/2026 if shipped by air

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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

Not Yet Reviewed

Estimated Ship Date: Mar 13, 2026 if ordered today

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Gear, Ring and Pinion, EXCel, 4.10:1 Ratio, GM, 8.875 in., 12-Bolt Truck, Set

Part Number: RMG-12BT410T

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

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Ring and Pinion Gears, 5.38:1 Ratio, 30-spline, Standard Ring Gear Rotation, GM 10.5 in. (14-bolt), Set

Part Number: YGA-24140

Not Yet Reviewed

Estimated Ship Date: Monday 2/23/2026 if shipped by air

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Universal Joint, 1350 Style, Greasable, Steel, Each

Part Number: MOG-331

5.0 out of 5 stars ( 6 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

• $20 Summit Bucks

Drive Shaft Center Support, Buick, Chevy, GMC, Each

Part Number: DOS-A6035

Not Yet Reviewed

Estimated Ship Date: Monday 2/23/2026 if shipped by air

Pilot Bushing, 0.400 in. Extended Length, 0.592 in. ID, Bronze, Each

Part Number: MCL-8617

4.45 out of 5 stars ( 11 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

Ring and Pinion Gears, EXCel, 3.73:1 Ratio, 30-spline, Standard Rotation, GM 10.5 in., Chevy, GMC, Rear, Set

Part Number: RMG-GM105373

Not Yet Reviewed

Estimated Ship Date: Mar 11, 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: Monday 2/23/2026 if shipped by air

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