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

ACDelco Driveshaft Center Support Bearings 19312073

Drive Shaft Center Support, Chevy, GMC, Each

Part Number: ADO-HB88508A

5.0 out of 5 stars ( 1 )

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

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

Hurst Limited-Slip 30 Spline Differential GM 8.875 Inch (12-bolt), truck 02-125

Differential, Posi Performance, Limited Slip, 30-Spline, 3.73 Gear Ratios, GM, 12-Bolt, Each

Part Number: HUU-02-125

5.0 out of 5 stars ( 1 )

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

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

Hays Twister 3/4 Race 2,400-2,800 Stall Torque Converter 97-1D24Q

Torque Converters, Twister 3/4 Race, 1.703 in. Crank Pilot Diameter, 30-spline, 9.600 in. Diameter, 2,400 rpm Advertised Flash Stall, TH400, Each

Part Number: HAY-97-1D24Q

Not Yet Reviewed

Estimated Ship Date: Mar 12, 2026 if ordered today

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Estimated Ship Date: Mar 12, 2026 if ordered today

Yukon Gear & Axle U-Joints YUJ134

U-Joint, Spicer 1310-1330 Style, Steel, Each

Part Number: YGA-42005

Not Yet Reviewed

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

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

Motive Gear Ring and Pinion Sets GM10-273 GM 8.5/8.6 in. 2.73 Gears

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

Part Number: MGR-GM10-273

4.5 out of 5 stars ( 2 )

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

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

ACDelco GM Genuine Parts Wheel Bearings 19312436

Wheel Bearing, GM Genuine Part, for use on Honda®, AMC, Buick, Cadillac, Chevy, Dodge, Ford, GMC, Isuzu, Jeep, Mercury, Olds, Plymouth, Pontiac, Each

Part Number: ADO-5707

Not Yet Reviewed

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

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

FAG USA Wheel Bearings 103124

Tapered Roller Bearing, 1.625 in. I.D., 2.891 in. O.D., Steel, Each

Part Number: FWB-103124

Not Yet Reviewed

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

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

Timken Wheel Seals 5131

Axle Seal, Each

Part Number: TMK-5131

3.86 out of 5 stars ( 7 )

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

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

Hays Pivot Ball Studs 84-119

Clutch Fork Pivot Ball, Fixed, Steel, Natural, GM, Each

Part Number: HAY-84-119

3.0 out of 5 stars ( 6 )

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

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

Yukon Gear & Axle 30 Spline Differential Carrier Cases GM 10.5 Inch (14-bolt) YC G6258336

Differential Carrier Cases, GM 10.50 in. 30 Spline, 4.10 and Down Ratio, Each

Part Number: YGA-20100

5.0 out of 5 stars ( 2 )

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

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

Fidanza Billet Aluminum 153-Tooth Flywheel 198541

Fidanza Billet Aluminum 153-Tooth Flywheel 198541

Flywheel, Aluminum, 10.5 lbs., Chevy, Each

Part Number: FIZ-198541

Not Yet Reviewed

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

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

SKF Bearings Pilot Bearings B657

Pilot Bearings and Bushings, Roller Type, Steel Roller Bearing, 0.719 in. Width, 1.100 in. O.D., Buick, Chevy, Eagle, GMC, Jeep, Olds, Pontiac, Each

Part Number: SKF-B657

3.0 out of 5 stars ( 4 )

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

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

Pioneer 168-Tooth Flexplate FRA-100

FLEXPLATE

Part Number: PIO-FRA-100

1.0 out of 5 stars ( 4 )

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

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

LuK Clutch Kits 6313086770

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: Monday 2/23/2026 if shipped by air

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

Lokar Hi-Tech Kickdown Kits KD-2350TPU

Automatic Transmission Kickdown Cable, Hi-Tech, Black Vinyl, Natural Aluminum Fittings, GM, TH350, Kit

Part Number: LOK-KD-2350TPU

5.0 out of 5 stars ( 2 )

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

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

SKF Bearings U-Joints UJ369

U-Joint, Spicer 1310, Greasable, Steel, Round Plain Bearing Caps, for Nissan, AMC, Chevy, Ford, GMC, Jeep, Mercury, Olds, Pontiac, Volvo, Each

Part Number: SKF-UJ369

Not Yet Reviewed

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

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

TCI Automatic Transmission Rear Case Bearings 224400

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

Part Number: TCI-224400

4.92 out of 5 stars ( 12 )

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

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

McLeod Super StreetPro Clutch Kits 75231

Clutch Kit, Super StreetPro, 1.125 in. - 26-spline, Organic/Ceramic Disc, Pressure Plate, Chevy, Kit

Part Number: MCL-75231

Not Yet Reviewed

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

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

Centerforce II Pressure Plates CFT165552

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

Part Number: CTF-CFT165552

5.0 out of 5 stars ( 2 )

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

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

VEGE Remanufactured 1,700-1,800 Stall Torque Converter TQBU3HF

Torque Converter, GM TH400 65-86 FB HS

Part Number: CCV-TQBU3HF

Not Yet Reviewed

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

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

PRW Flywheel Fasteners 1001102

Flywheel Bolts, Heat Treated Steel, 12 point, 7/16 in.- 20 RH, 1.00 in. length, Chevy, Ford, Set of 6

Part Number: PQX-1001102

Not Yet Reviewed

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

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

Spicer Drivetrain Products Differential Cover Bolts 34279

Differential Cover Bolts, Steel, Black, Hex, Each

Part Number: SDH-34279

Not Yet Reviewed

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

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

Pioneer 168-Tooth Flywheel FW-100

Flywheel, OEM Cast, 168-Tooth, 30 lb., Internal Engine Balance, Chevy, GMC, Each

Part Number: PIO-FW100

4.0 out of 5 stars ( 31 )

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

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

Timken Pinion Bearings HM88649

Differential Pinion Bearing, 1.375 in. Inside Diameter, Each

Part Number: TMK-HM88649

5.0 out of 5 stars ( 2 )

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

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

Hays High Performance Throwout Bearings 70-104

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: Monday 2/23/2026 if shipped by air

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