1981 CHEVROLET K20 Transmission & Drivetrain - In Stock Filter Options - Vendor In Stock Filter Options

Hays Classic Conversion Clutch Kits 83-1100

Clutch Kit, 5/6-Speed Conversion, Organic, 1 .125 in.-26-Spline, 10.5 in. Diameter Disc, Buick, Checker, Chevy, GMC, Pontiac, Oldsmobile, Kit

Part Number: HAY-83-1100

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

ACDelco Gold Universal Joints 19470451

U-Joints, Gold Universal Joints, Greasable, Steel, for Nissan, AMC, Chevy, Dodge, Ford, GMC, International, Isuzu, Jeep, Mercury, Olds, Pontiac, Each

Part Number: ADO-45U0107

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Dorman Flywheel Fasteners 74070

Flywheel Fasteners, 12-point, 7/16-20 in. Thread, Steel, Black, Buick, Cadillac, Chevy, Ford, Jeep, Set of 6

Part Number: RNB-74070

3.88 out of 5 stars ( 8 )

Estimated Ship Date: Tomorrow

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Centerforce II Pressure Plates CFT361909

Pressure Plate, Centerforce II, Diaphragm-Style, 12 in. Disc Diameter, Each

Part Number: CTF-CFT361909

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 13, 2026 if ordered today

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Estimated Ship Date: Mar 13, 2026 if ordered today

Motive Gear Ring and Pinion Sets GM12-373X GM 8.875 in. (12-bolt) truck 3.73 Gears

Gear, Ring and Pinion, 3.73:1 Ratio, GM, 12-Bolt, Truck, Set

Part Number: MGR-GM12-373X

Not Yet Reviewed

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B&M Automatic Transmission Deep Pans 20289

Transmission Pan, Deep, Steel, Chrome, GM, TH400, Each

Part Number: BMM-20289

4.11 out of 5 stars ( 9 )

Estimated Ship Date: Tomorrow

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Yukon Gear & Axle Ring and Pinion Sets YG GM14T-411 GM 10.5 in. (14-bolt) 4.11 Gears

Gear, Ring and Pinion, 4.11:1 Ratio, 1.750 in. Pinion, 30 Spline, 10.500 in. Ring Gear, GM 14 Bolt, Set

Part Number: YGA-24135

Not Yet Reviewed

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Centerforce I Pressure Plates CF165552

Pressure Plate, Centerforce I, Diaphragm, 11 in. Disc Diameter, Buick, Chevy, Dodge, Ford, GMC, Oldsmobile, Pontiac, Each

Part Number: CTF-CF165552

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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Richmond Gear Ring and Pinion Sets 49-0280-1 GM 8.875 in. (12-bolt) truck 3.73 Gears

Gear, Ring and Pinion, 3.73:1 Ratio, GM, 12-Bolt Truck, 4 Series, Set

Part Number: RMG-4902801

4.0 out of 5 stars ( 12 )

Estimated Ship Date: Tomorrow

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Centerforce Dual Friction Clutch Kits DF612909

Clutch Kit, Dual Friction, 1 1/8 in. Diameter, 26-Spline, 12 in. Diameter Disc, Chevy, V8, Kit

Part Number: CTF-DF612909

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Tomorrow

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Warn Service Kits 11967

Hub Service Kit, Standard, Chevy, GMC, Dodge, Ford, International, Jeep, Kit

Part Number: WRN-11967

Not Yet Reviewed

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B&M 14 Bolt GM 10.5 Inch Differential Cover 70501

Differential Cover, Aluminum, Natural, Finned, B&M Logo, GM 10.5 in., 14-Bolt Cover, Each

Part Number: BMM-70501

4.55 out of 5 stars ( 11 )

Estimated Ship Date: Tomorrow

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Yukon Gear & Axle Ring and Pinion Sets YG GM8.5-456 GM 8.5/8.6 in. 4.56 Gears

Ring & Pinion Gear, 4.56 Ratio, GM, 8.5 in./8.6 in., Set

Part Number: YGA-24161

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

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USA Standard Gear Master Overhaul Kits ZK GM8.5-F

USA Standard Master Overhaul kit for the GM 8.5 front differential

Part Number: SPZ-37056

Not Yet Reviewed

Estimated Ship Date: Mar 10, 2026 if ordered today

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Estimated Ship Date: Mar 10, 2026 if ordered today

Motive Gear Ring Gear Bolts 14066913

Ring Gear Bolt

Part Number: MGR-14066913

4.75 out of 5 stars ( 4 )

Estimated Ship Date: Tomorrow

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ATP Automatic Transmission Filter Kits B-29

Transmission Filter, GM, Rolls-Royce, TH400, Kit

Part Number: ATP-B29

3.67 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

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FAG USA Wheel Bearings DB0669

Wheel Bearings, Tapered Roller, Steel, 1.313 in. Inside Diameter, 2.687 in. Outside Diameter, Each

Part Number: FWB-DB0669

Not Yet Reviewed

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QuickTime 153-Tooth Flexplate RM-922

Flexplate, 153 Tooth, Internal Balance, 2-Piece Rear Main Seal, Steel, Chevy, Each

Part Number: QTI-RM-922

4.2 out of 5 stars ( 5 )

Estimated Ship Date: Tomorrow

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RAM Flywheel Ring Gears 13-168

RAM Flywheel Ring Gears 13-168

Flywheel and Flexplate Ring Gears, Steel, 168 Tooth, Chevrolet, Buick, Pontiac, Oldsmobile, Each

Part Number: RAM-13-168

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

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Timken Wheel Bearing Races 362A

Wheel Bearing Race, Front Inner, Steel, 0.650 in. Width, 3.500 in. O.D., Bentley, Dodge, Ford, GMC, Jeep, Each

Part Number: TMK-362A

Not Yet Reviewed

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Timken Pinion Bearings 02872

Differential Pinion Bearing, 1.125 in. Inside Diameter, Each

Part Number: TMK-02872

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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USA Standard Gear Ring and Pinion Sets ZG GM8.5-308 GM 8.5/8.6 in. 3.08 Gears

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

Part Number: SPZ-36211

Not Yet Reviewed

Estimated Ship Date: Mar 10, 2026 if ordered today

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Estimated Ship Date: Mar 10, 2026 if ordered today

ARB Air Locker 35 Spline Differential Dana 60-HD RD167

Differential Carrier, Air Locker, Nodular Iron, Dana 60-HD, Kit

Part Number: ARB-RD167

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Yukon Gear & Axle Lifetime Series U-Joints YUJ799

U-Joint, Lifetime Series, Spicer 1350 Style, Steel, AMC, Buick, Cadillac, Chevy, Chrysler, Dodge, Ford, GMC, Jeep, Mercury, Olds, Pontiac, Each

Part Number: YGA-42021

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Yukon Gear & Axle Differential Pinion Yokes YY GM3988524

Pinion Yoke, Steel, Spicer 1310 Type, 30-Spline, GM, 8.5 in., Kit

Part Number: YGA-41086

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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