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

USA Standard Gear Spider Gear Sets ZIKGM14T-S-30

USA Standard Gear standard spider gear set for GM 10.5" 14 bolt truck

Part Number: SPZ-39022

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 Pinion Installation Kits PK GM8.5-F

Yukon Pinion install kit for GM 8.5" front differential

Part Number: YGA-13070

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 24, 2026 if ordered today

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Estimated Ship Date: Mar 24, 2026 if ordered today

McLeod Clutch Discs 260143

Clutch Disc, Organic, 1 1/8 in. 10-Spline, 12 in. Disc, Each

Part Number: MCL-260143

Not Yet Reviewed

Estimated Ship Date: Mar 25, 2026 if ordered today

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Estimated Ship Date: Mar 25, 2026 if ordered today

Lokar Hi-Tech Kickdown Kits KD-2400BLDU

Lokar Hi-Tech Kickdown Kits KD-2400BLDU

Automatic Transmission Kickdown Cable, Hi-Tech, Black Vinyl, Natural Aluminum Fittings, GM, TH400, Kit

Part Number: LOK-KD-2400BLDU

Not Yet Reviewed

Estimated Ship Date: Mar 6, 2026 if ordered today

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Estimated Ship Date: Mar 6, 2026 if ordered today

Excel Ring Pinion and Axle Differential Cross Shafts XL-5640

Pinion Shaft, CROSS PIN-GM 10 BOLT 8.5" - 93

Part Number: RMG-XL-5640

Not Yet Reviewed

Estimated Ship Date: Mar 11, 2026 if ordered today

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Estimated Ship Date: Mar 11, 2026 if ordered today

Yukon Gear & Axle Bearing Kits BK GM8.5-F

Yukon Bearing install kit for GM 8.5" front differential

Part Number: YGA-11068

Not Yet Reviewed

Estimated Ship Date: Mar 25, 2026 if ordered today

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Estimated Ship Date: Mar 25, 2026 if ordered today

Motive Gear Differential Carrier Replacement Parts 3977346

WASHER PINION 14 BLT 10.5

Part Number: MGR-3977346

Not Yet Reviewed

Estimated Ship Date: Mar 11, 2026 if ordered today

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Estimated Ship Date: Mar 11, 2026 if ordered today

Pioneer Automotive Automatic Transmission Rebuild Kits 751003

BANNER KIT

Part Number: PIO-751003

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

Pioneer Automotive Automatic Transmission Rebuild Kits 751035

BANNER KIT/short ring kit

Part Number: PIO-751035

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 Axle Retainer Plates 3833322

Axle Shaft Retainer

Part Number: MGR-3833322

Not Yet Reviewed

Estimated Ship Date: Mar 11, 2026 if ordered today

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Estimated Ship Date: Mar 11, 2026 if ordered today

Dorman U-Joint Fasteners 929-714

U-Bolt Repair Kit

Part Number: RNB-929-714

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

FAG USA Multi-Purpose Oil Seals SS2106

Seal, Nitrile Rubber, Red, 0.404 in. Shaft, Chevrolet, GMC, Each

Part Number: FWB-SS2106

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 U-Joint Fasteners 929-715

U-Bolt Repair Kit

Part Number: RNB-929-715

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

Motive Gear Basic Ring and Pinion Gear Installation Kits R14RPK

Ring and Pinion Installation Kit, Basic, GM 10.5 in. 14-Bolt, Rear, Kit

Part Number: MGR-R14RPK

Not Yet Reviewed

Estimated Ship Date: Mar 11, 2026 if ordered today

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Estimated Ship Date: Mar 11, 2026 if ordered today

BCA Bearings by NTN Tapered Roller Bearings NBA42

Multi Purpose Bearing, OE Style replacement bearing.

Part Number: NTN-NBA42

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 Basic Ring and Pinion Gear Installation Kits R10RE

Ring and Pinion Installation Kit, Basic, GM 8.5 in., Front/Rear, Kit

Part Number: MGR-R10RE

Not Yet Reviewed

Estimated Ship Date: Mar 11, 2026 if ordered today

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Estimated Ship Date: Mar 11, 2026 if ordered today

Yukon Gear & Axle Minimum Install Kits MK GM9.5-A

Ring and Pinion Gear Installation Kit, Minimum Install, 30-spline, Standard Rotation, Rear, GM 9.5 in., Kit

Part Number: YGA-12061

Not Yet Reviewed

Estimated Ship Date: Mar 25, 2026 if ordered today

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Estimated Ship Date: Mar 25, 2026 if ordered today

Yukon Gear & Axle Bearings AK F-G06

Axle Bearing, Seal, Outer, One Side Only, Front, Dana 44, GM 8.5 in.(Truck, Front), Chevy, GMC, Kit

Part Number: YGA-10027

Not Yet Reviewed

Estimated Ship Date: Mar 24, 2026 if ordered today

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Estimated Ship Date: Mar 24, 2026 if ordered today

Sachs Stock Replacement Pressure Plates 3082 654 319

CLUTCH PRESSURE PLATE

Part Number: SXR-3082-654-319

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 17, 2026 if ordered today

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Estimated Ship Date: Mar 17, 2026 if ordered today

Motive Gear Pinion Bearings and Races R12RTPK

Pinion Bearing Kit, PK GM 8.875" TRUCK

Part Number: MGR-R12RTPK

Not Yet Reviewed

Estimated Ship Date: Mar 11, 2026 if ordered today

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Estimated Ship Date: Mar 11, 2026 if ordered today

Motive Gear Timken Wheel Bearing Races 382AT

Bearing Race, Steel, 3.813 in. O.D., 0.625 in. Width, Outer Wheel, Each

Part Number: MGR-382AT

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

Yukon Gear & Axle 14 Bolt GM 10.5 Inch Differential Cover YP C1-GM14T

Differential Cover, 14-bolt, Steel, Chrome, GM 10.5 in. (14-bolt), Each

Part Number: YGA-32013

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

Motive Gear Koyo Wheel Bearing Races 382A

Bearing Race, Steel, 3.813 in. O.D., 0.625 in. Width, Outer Wheel, Each

Part Number: MGR-382A

Not Yet Reviewed

Estimated Ship Date: Mar 11, 2026 if ordered today

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Estimated Ship Date: Mar 11, 2026 if ordered today

Yukon Gear & Axle U-Joints YUJ160

U-Joint, Spicer 1410, Greasable, Steel, Chevy, Dodge, Ford, GMC, Jeep, Plymouth, Ram, Each

Part Number: YGA-42009

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

Motive Gear Differential Pinion Bearing Spacers and Sleeves 4107

SOLID PINION SPACER, 12 BOLT TRUCK

Part Number: MGR-4107

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