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

Yukon Gear & Axle Hub Bolts YSPBLT-085

Axle Hub Bolt, Axle bolt for GM 10.5-IN. 14 bolt truck and 11.5-IN. AAM

Part Number: YGA-33583

Not Yet Reviewed

Estimated Ship Date: Mar 23, 2026 if ordered today

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Estimated Ship Date: Mar 23, 2026 if ordered today

Dorman U-Joint Fasteners 929-836

U-Bolt Kit

Part Number: RNB-929-836

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 Axle and General Purpose Seals YMS99193

Redi Sleeve for GM 8.5", 9.5" & 8.2" BOP Yokes.

Part Number: YGA-30229

Not Yet Reviewed

Estimated Ship Date: Mar 23, 2026 if ordered today

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Estimated Ship Date: Mar 23, 2026 if ordered today

Yukon Gear & Axle Crosspins and Shafts YSPXPGM9.5

Differential Cross Shafts, GM 9.5, 12 or 14 Bolt, Fits Yukon Dura Grip or Eaton Positraction Carriers, Cadillac, Chevrolet, GMC, Each

Part Number: YGA-33205

Not Yet Reviewed

Estimated Ship Date: Mar 23, 2026 if ordered today

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Estimated Ship Date: Mar 23, 2026 if ordered today

Powertrax Differential Carrier Replacement Parts 8001002KAW

SPRING ASSEMBLY

Part Number: PWT-8001002KAW

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Apr 9, 2026 if ordered today

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Estimated Ship Date: Apr 9, 2026 if ordered today

Yukon Gear & Axle Differential Carrier Replacement Parts YSPTW-034

Thrust Washer, Open Differential, GM 8.5 in., Each

Part Number: YGA-33304

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 23, 2026 if ordered today

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Estimated Ship Date: Mar 23, 2026 if ordered today

ATP Automotive Automatic Transmission Filters TF-29

AUTO TRANS FLTR KT

Part Number: ATP-TF29

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

Mevotech Supreme Wheel Bearings HA-35

WHEEL BEARING

Part Number: MEV-HA35

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

Anchor Industries Driveshaft Center Support Bearings 6027

Driveshaft Support Carrier Bearings, Anchor Industries Driveshaft Center Support Bearings, Rubber, Black Bushing, Each

Part Number: ANI-6027

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

BCA Bearings by NTN Oil Seals NS722108

Multi Purpose Seal, OE style replacement quality seal.

Part Number: NTN-NS722108

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 Manual Transmission Replacement Parts RGB4-LW

Lockwasher, LOCKWASHER 7/16" C9.25/F7.5

Part Number: MGR-RGB4-LW

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

Dorman Ring and Pinion Installation Kits 697-100

Ring and Pinion Installation Kit, GM, 8.5 in., 10-Bolt, Kit

Part Number: RNB-697-100

3.0 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

Yukon Gear & Axle Ring Gear Bolts YSPBLT-020

Ring Gear Bolt, Hex Head, 1/2-20 in. Thread Size, Steel, Natural, Each

Part Number: YGA-33050

3.0 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

Motive Gear Performance Ring and Pinion Sets G885513 GM 8.5/8.6 in. 5.13 Gears

Gear, Ring and Pinion, 5.13:1 Ratio, GM, 8.5/8.6 in., Set

Part Number: MGR-G885513

4.67 out of 5 stars ( 3 )

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 Differential Carrier Replacement Parts YSPSR-014

14T 10.5" GM OUTER WHEEL BRG RETAINING SNAP RING

Part Number: YGA-33370

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

Yukon Gear & Axle Bearing Kits BK GM9.5-A

Yukon Bearing install kit for '79-'97 GM 9.5" differential

Part Number: YGA-11074

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

Dorman Ring and Pinion Sets 697-300 GM 8.5/8.625 in. 3.42 Gears

Differential Ring And Pinion Set

Part Number: RNB-697-300

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

RAM Force 10.5 Dual Disc Clutch Kits 80-2120

RAM Force 10.5 Dual Disc Clutch Kits 80-2120

Clutch Kit, Force 10.5 Twin-Plate, Organic Disc, 1 1/8 in. Diameter Shaft, 10-Spline, Chevy, Kit

Part Number: RAM-80-2120

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 Ten Factory Axle Shafts MG20441

Axle Shafts, Ten Factory, Front Right Inner , 4340 Chromoly, Cut to Fit, 39.00 Length, Dana 44, Each

Part Number: MGR-MG20441

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 Ten Factory Axle Shafts MG20660B

Axle Shaft, Direct Fit, 4340 Chromoly, 35-Spline, 17.670 in. Length, Chevy, GMC, Each

Part Number: MGR-MG20660B

3.0 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

Auburn Gear Select-A-Loc 28 Spline Differential GM 8.5 Inch 545003

Differential, Select-A-Loc, 28-Spline, GM, 8.5 in., 10-Bolt, Each

Part Number: AUB-545003

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 Manual Transmission Bearings 306SLVB

Manual Transmission Bearings, Output Shaft, Buick, Chevrolet, GMC, Olds, Pontiac, Each

Part Number: TMK-306SLVB

1.0 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

SKF Bearings Pinion Bearing Races HM803110

Tapered roller bearing race

Part Number: SKF-HM803110

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

BCA Bearing Universal Bearings NBSCE108

Multi Purpose Bearing, OE Style replacement bearing.

Part Number: NTN-NBSCE108

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

USA Standard Gear Ring and Pinion Gears ZG GM9.5-513

9.5" GM 5.13 R&P ** USA STANDARD GEAR **

Part Number: SPZ-36228

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