1981 CHEVROLET K20 Transmission & Drivetrain

Differential Clutch, Steel Pack, Dura-Grip, Eaton, 18-Plate, GM, 8.875 in., Set

Part Number: YGA-16110

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 25, 2026 if ordered today

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Clutch, Street/Strip, General Motors, V6/L6, Each

Part Number: HAY-85-113

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 16, 2026 if ordered today

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

Part Number: MCL-75231

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

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Differential Internals, Yukon Dura Grip or Eaton Positraction Internals for 8.5" GM with 28 Spline Axles, Kit

Part Number: YGA-16052

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Estimated Ship Date: Mar 25, 2026 if ordered today

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Universal Joint, Gold, Greasable, Steel, Round Plain, for Infiniti, for Nissan, Chevy, Dodge, Ford, GMC, Lincoln, Mercury, Ram, SRT, Toyota, Each

Part Number: ADO-45U0109

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

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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FLYWHEEL SHIM .050

Part Number: PIO-FWS-28

1.0 out of 5 stars ( 2 )

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

Gear, Ring and Pinion, 4.56:1 Ratio, GM, 12-Bolt Truck, Set

Part Number: HUU-02-114

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Estimated Ship Date: Mar 16, 2026 if ordered today

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Differential Carrier, Spartan Locker, Steel, 30-spline, Rear, GM 8.5 in., Each

Part Number: SPZ-17041

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Estimated Ship Date: Mar 10, 2026 if ordered today

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Axle Shaft, Front Inner, 4340 Chromoly, 28 Spline, 19.51 in. Length, GM 8.5 in., Each

Part Number: YGA-21365

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 25, 2026 if ordered today

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Locking Hubs, Aluminum, 19-spline, Chevy, Dodge, Ford, GMC, Jeep, Plymouth, Pair

Part Number: YGA-29096

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 24, 2026 if ordered today

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Gear, Ring and Pinion, 3.08:1 Ratio, GM, 8.5/8.6 in., Set

Part Number: MGR-G885308

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Mar 13, 2026 if ordered today

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USA Standard Ring & Pinion gear set for GM 9.5" in a 3.42 ratio

Part Number: SPZ-36298

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Estimated Ship Date: Mar 9, 2026 if ordered today

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Ring Gear Spacer, 0.200 in. Thick, 10-bolt, GM 8.5 in., Each

Part Number: MGR-085050

4.5 out of 5 stars ( 6 )

Estimated Ship Date: Mar 13, 2026 if ordered today

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Carrier Shims, Super, Steel, Set of 18

Part Number: YGA-16042

3.11 out of 5 stars ( 9 )

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

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

Part Number: MGR-R10RTPK

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Estimated Ship Date: Mar 13, 2026 if ordered today

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Differential Cross Shaft, Steel, 0.795 in. Diameter, Each

Part Number: YGA-33401

5.0 out of 5 stars ( 1 )

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

Differential Carrier, Open, Loaded, GM/Chrysler 9.25/9.50 in. 33 Spline, Each

Part Number: YGA-20097

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Estimated Ship Date: Mar 25, 2026 if ordered today

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Pilot Bushing, Bronze, 1.125 in. Diameter, Chevy, Oldsmobile, Each

Part Number: MCL-8-1094-4

4.25 out of 5 stars ( 4 )

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

Flywheel, Steel, Chevy, GMC, Each

Part Number: LUK-LFW104

Not Yet Reviewed

Estimated Ship Date: Mar 30, 2026 if ordered today

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U-Joint Strap and Bolts, Buick, Chevy, GMC, Oldsmobile, Pontiac, Each

Part Number: RNB-81000

1.0 out of 5 stars ( 2 )

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

Clutch Kit, DFX, Performance, Single Disc, 10-Spline, 1.125 in. Diameter, 11 in. Disc Diameter, Cerametallic, 6-Paddle, Sprung Hub, Kit

Part Number: CTF-315735552

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Estimated Ship Date: Mar 16, 2026 if ordered today

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Gear, Ring and Pinion, 5.57:1 Ratio, GM, 8.5/8.6 in., 10-Bolt, 3 Series, Set

Part Number: RMG-6901751

5.0 out of 5 stars ( 1 )

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

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Crush Sleeve, Steel, GM 8.875 in. (12-bolt), Truck, Each

Part Number: MGR-3954482

Not Yet Reviewed

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

Axle Seal, Each

Part Number: TMK-722108

3.0 out of 5 stars ( 1 )

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