Availability
1981 CHEVROLET K20 Transmission & Drivetrain
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
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
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
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Universal Joint, 1310-WJ Style, Non-Greasable, Steel, Each
Part Number: SUM-732004
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
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
Estimated Ship Date: Mar 9, 2026 if ordered today
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
Estimated Ship Date: Mar 16, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
Richmond Gear Ring and Pinion Sets 49-0068-1 GM 8.875 in. (12-bolt) truck 3.08 Gears
Estimated Ship Date: Tomorrow
Differential Cover, 14-bolt, Steel, Chrome, GM 9.5 in., Each
Part Number: YGA-32018
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Flywheels, Billet Aluminum, 168-tooth, 14 lbs., Internal Engine Balance, SFI 1.1, Chevy, Each
Part Number: HAY-20-130HYS
Not Yet Reviewed
Estimated Ship Date: Mar 16, 2026 if ordered today
Estimated Ship Date: Mar 16, 2026 if ordered today
Seal, Nitrile Rubber, Red, 1.50 in. Shaft, Each
Part Number: FWB-SS2569
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Bearing, Pinion, 1.312 in. Inside Diameter, Each
Part Number: NTL-M88048
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Crush Sleeve, Steel, 0.620 in. Tall, Each
Part Number: YGA-33097
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Detent Cable, Black, 38.0 in. Length, for TH250C or TH350C, Buick, Chevy, GMC, Oldsmobile, Pontiac, Each
Part Number: ATP-Y233
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Clutch Fork Pivot Ball GM
Part Number: IST-BHG-SH097
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Gear, Ring and Pinion, 2.73:1 Ratio, GM, 8.5/8.6 in., Set
Part Number: MGR-G885273
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Crush Sleeve, Steel, 0.825 in. Tall, GM 10.5 in. (14-bolt), Each
Part Number: YGA-33108
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Flywheel, Steel, 153-Tooth, 30 lb., Internal Balance, Chevy, Big, Small Block, Each
Part Number: HAY-10-330
Estimated Ship Date: Mar 16, 2026 if ordered today
Estimated Ship Date: Mar 16, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
Gear, Ring and Pinion, 3.23:1 Ratio, GM 8.5 in., Set
Part Number: RNB-697-810
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
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
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
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
Not Yet Reviewed
Estimated Ship Date: Mar 16, 2026 if ordered today
Estimated Ship Date: Mar 16, 2026 if ordered today
Ring & Pinion Gear Set GM 10 Bolt 8.5" / 3.90 Ratio
Part Number: SVL-2020954
Estimated Ship Date: Mar 9, 2026 if ordered today
Estimated Ship Date: Mar 9, 2026 if ordered today
Hydraulic Throwout Bearing Conversion Kits, Hydramax Hydraulic Clutch Release Systems, Blue Aluminum Slave Cylinder, Reservoir, Chevrolet, GMC, Kit
Part Number: AWR-HMGM40006
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Automatic Transmission Kickdown Cable, Hi-Tech, Natural Braided Stainless Steel, Polished Aluminum Fittings, GM, TH350, Kit
Part Number: LOK-KDP-2350HT
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Specialty Components, TH400 Reverse Cushion Kit
Part Number: TRG-400RK
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Torque Converters, Twister Full Race, 2,800-3,200 rpm Stall Speed Range, 30-spline, 9.600 in. Diameter, Chevrolet THM400, Buick, Chevy, Jeep, Each
Part Number: HAY-97-1D28F
Estimated Ship Date: Mar 16, 2026 if ordered today
Estimated Ship Date: Mar 16, 2026 if ordered today
Tapered roller bearing set (bearing and race)
Part Number: SKF-BR101
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
CLUTCH KIT
Part Number: SXR-K1877-09
Not Yet Reviewed
Estimated Ship Date: Mar 17, 2026 if ordered today
Estimated Ship Date: Mar 17, 2026 if ordered today
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