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

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 )

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Yukon Gear & Axle 1541H Alloy Axles YA G14035395

Direct Fit Axle Shafts, Rear, Right or Left, 33-Spline, Steel, 32.75 in. Length, 8-Lug, Chevrolet, GMC, GM 9.5 in., Each

Part Number: YGA-21252

5.0 out of 5 stars ( 1 )

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SVL Drivetrain Spider Gear Kits 10020477

Differential Carrier Rebuild Kits and Spider Gears, GM 8.5 in., Side Gears, Rear, Open, 28-spline, 10-bolt, GM 8.5 in., Kit

Part Number: SVL-10020477

Not Yet Reviewed

Estimated Ship Date: Mar 9, 2026 if ordered today

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Estimated Ship Date: Mar 9, 2026 if ordered today

Hurst Ring and Pinion Sets 02-126 GM 8.875 in. (12-bolt) truck 3.08 Gears

Gear, Ring and Pinion, 3.08:1 Ratio, GM, 12-Bolt Truck, Set

Part Number: HUU-02-126

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

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Richmond Gear Ring and Pinion Sets 49-0068-1 GM 8.875 in. (12-bolt) truck 3.08 Gears

5 out of 5 stars ( 3 )

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Hays Classic Clutch Kits 85-112

Clutch Kit, Organic, 1 1/8 in. Diameter Shaft, 26-Spline, 11 in. Diameter Disc, Buick, Chevy, GMC, Pontiac

Part Number: HAY-85-112

4.75 out of 5 stars ( 4 )

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

Yukon Gear & Axle 14 Bolt GM 9.5 Inch Differential Cover YP C1-GM9.5

Differential Cover, 14-bolt, Steel, Chrome, GM 9.5 in., Each

Part Number: YGA-32018

Not Yet Reviewed

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FAG USA Multi-Purpose Oil Seals SS2569

Seal, Nitrile Rubber, Red, 1.50 in. Shaft, Each

Part Number: FWB-SS2569

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Yukon Gear & Axle Differential Crush Sleeves YSPCS-014

Crush Sleeve, Steel, 0.620 in. Tall, Each

Part Number: YGA-33097

1.0 out of 5 stars ( 1 )

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National Bearing Pinion Bearings M88048

Bearing, Pinion, 1.312 in. Inside Diameter, Each

Part Number: NTL-M88048

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ATP Detent Cables Y-233

Detent Cable, Black, 38.0 in. Length, for TH250C or TH350C, Buick, Chevy, GMC, Oldsmobile, Pontiac, Each

Part Number: ATP-Y233

4.5 out of 5 stars ( 16 )

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Silver Sport Clutch Fork Pivot Balls BHG-SH097

Clutch Fork Pivot Ball GM

Part Number: IST-BHG-SH097

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Motive Gear Performance Ring and Pinion Sets G885273 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-G885273

5.0 out of 5 stars ( 1 )

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Yukon Gear & Axle Differential Crush Sleeves YSPCS-025

Crush Sleeve, Steel, 0.825 in. Tall, GM 10.5 in. (14-bolt), Each

Part Number: YGA-33108

4.67 out of 5 stars ( 3 )

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Hays Billet Steel 153-Tooth Flywheel 10-330

Flywheel, Steel, 153-Tooth, 30 lb., Internal Balance, Chevy, Big, Small Block, Each

Part Number: HAY-10-330

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Mar 16, 2026 if ordered today

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RAM Billet Steel 153-Tooth Flywheel 1511

4.75 out of 5 stars ( 12 )

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Dorman Ring and Pinion Sets 697-810 GM 8.5 in. 3.23 Gears

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

Part Number: RNB-697-810

Not Yet Reviewed

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SVL Drivetrain Ring and Pinion Gear Sets 2020954 GM 8.5/8.6 in. 3.90 Gears

Ring & Pinion Gear Set GM 10 Bolt 8.5" / 3.90 Ratio

Part Number: SVL-2020954

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 9, 2026 if ordered today

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Estimated Ship Date: Mar 9, 2026 if ordered today

Yukon Gear & Axle Ring and Pinion Sets YG GM14T-321 GM 10.5 in. (14-bolt) 3.21 Gears

Ring and Pinion Gears, GM 10.5 in. (14-bolt), 3.21:1 Ratio, 30-spline, Standard Ring Gear Rotation, Rear, Chevrolet, GMC, Set

Part Number: YGA-24465

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Hays Twister Full Race 3,600-4,200 Stall Torque Converter 97-1D36F

Torque Converters, Twister Full Race, 3,600-4,200 rpm Stall Speed Range, 30-spline, 9.600 in. Diameter, Chevrolet THM400, Buick, Chevy, Jeep, Each

Part Number: HAY-97-1D36F

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Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

Lokar Hi-Tech Kickdown Kits KDP-2350HT

Lokar Hi-Tech Kickdown Kits KDP-2350HT

Automatic Transmission Kickdown Cable, Hi-Tech, Natural Braided Stainless Steel, Polished Aluminum Fittings, GM, TH350, Kit

Part Number: LOK-KDP-2350HT

5.0 out of 5 stars ( 2 )

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American Powertrain Hydramax Hydraulic Clutch Release Systems HMGM40006

Hydraulic Throwout Bearing Conversion Kits, Hydramax Hydraulic Clutch Release Systems, Blue Aluminum Slave Cylinder, Reservoir, Chevrolet, GMC, Kit

Part Number: AWR-HMGM40006

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SKF Bearings Tapered Cone Bearings BR101

Tapered roller bearing set (bearing and race)

Part Number: SKF-BR101

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Sachs Stock Replacement Clutch Kits K1877-09

CLUTCH KIT

Part Number: SXR-K1877-09

Not Yet Reviewed

Estimated Ship Date: Mar 17, 2026 if ordered today

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Estimated Ship Date: Mar 17, 2026 if ordered today

Richmond Gear EXCel Ring and Pinion Gear Installation Kits XL-1018-1

Ring and Pinion Kit

Part Number: RMG-XL-1018-1

Not Yet Reviewed

Estimated Ship Date: Mar 13, 2026 if ordered today

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Estimated Ship Date: Mar 13, 2026 if ordered today

Lokar Hi-Tech Kickdown Kits KD-2350TP

Automatic Transmission Kickdown Cable, Hi-Tech, Natural Braided Stainless Steel, Natural Aluminum Fittings, GM, TH350, Kit

Part Number: LOK-KD-2350TP

5.0 out of 5 stars ( 3 )

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ATP Automatic Transmission Dipstick Tube Seals SO-33

Transmission Fluid Dipstick Components, Dipstick Tube Seal, Rubber, 0.68 in. I.D., 0.87 in. O.D., GM, Each

Part Number: ATP-SO33

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