1981 CHEVROLET K20 Transmission & Drivetrain

Axle Shaft, Front, Dana 44, Each

Part Number: SDH-41677

5.0 out of 5 stars ( 3 )

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

Universal Joint, Super Strength, 1344 Style, Solid, Steel, Each

Part Number: MOG-234

4.42 out of 5 stars ( 12 )

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

• $20 Summit Bucks

Gear, Ring and Pinion, 4.88:1 Ratio, GM, 8.5/8.6 in., 10-Bolt, 3 Series, Set

Part Number: RMG-6901691

4.6 out of 5 stars ( 5 )

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

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Throwout Bearing, 1400 Series, Hydraulic, 1.250 in. Diameter, Billet Aluminum Bearing, Mopar, A833, Each

Part Number: MCL-1406-10

Not Yet Reviewed

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

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Spool, Mini, Steel, 30-spline, 10-bolt, GM 8.5 in., Each

Part Number: YGA-32233

4.67 out of 5 stars ( 12 )

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

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Transmission Fluid Dipsticks, Chrome Plated, Bellhousing Mount, Case Entry, Chrome Tube and Handle, 25.00 in. Length, Chevy, TH400, Each

Part Number: MRG-9765-A

Not Yet Reviewed

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

Gear, Ring and Pinion, 4.30:1 Ratio, GM, 8.5/8.6 in., 10-Bolt, Set

Part Number: MGR-GM10-430

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 11, 2026 if ordered today

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• Special Order

Axles, Replacement, Driver Side, Passenger Side, Rear, Chevy, GMC, 8.5 in., Pair

Part Number: MSR-A30-88GMTK

Not Yet Reviewed

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

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

Part Number: SVL-2023698

Not Yet Reviewed

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

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Axle Spindle Bearing, Front, 4WD, Each

Part Number: TMK-SBK1

4.0 out of 5 stars ( 5 )

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

Transmission Modulator Valve, GM, TH300, TH350, TH400, Each

Part Number: ATP-JX66

5.0 out of 5 stars ( 14 )

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

Clutch Disc, Organic, 1 1/8 in.- 26-Spline, 12 in. Disc, Chevy, Oldsmobile, Pontiac, V8, Each

Part Number: MCL-260173

4.67 out of 5 stars ( 3 )

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

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Clutch Disc, Organic, 1 1/8 in. Diameter Shaft, 10-Spline, 12 in. Diameter Disc, Chevy, GMC, L6, V8, Each

Part Number: CTF-384024

4.33 out of 5 stars ( 3 )

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

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Wheel Hub, Professional Grade, 8 x 6 1/2 in. Bolt Circle, Front, Chevy, GMC, Jeep, Each

Part Number: AGB-4286R

5.0 out of 5 stars ( 1 )

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

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Transmission Bellhousing Spacer, Universal, Bellhousing to Block, Steel, Zinc Plated, 0.375 in Thick, Chevy, Ford Small Block, Each

Part Number: QTI-RM-6013

Not Yet Reviewed

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

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Universal Joint, 1344 Style, Greasable, Steel, Each

Part Number: SUM-732001

3.0 out of 5 stars ( 2 )

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

U-Joint Straps, Steel, Natural, Pair

Part Number: YGA-41193

5.0 out of 5 stars ( 1 )

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

Ring and Pinion Gears, 4.11:1 Ratio, 30-spline, Standard Rotation, GM 9.5 in., Set

Part Number: YGA-24167

Not Yet Reviewed

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

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U-Bolts, Steel, Natural, AMC, Buick, Cadillac, Checker, Chevrolet, Dodge, Ford, GMC, Lincoln, Mercury, Plymouth, Pair

Part Number: MGR-MGUB1310

4.0 out of 5 stars ( 4 )

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

Ring and Pinion Installation Kit, Master Kit, GM, 8.5 in., Kit

Part Number: MGR-R10REMK

4.0 out of 5 stars ( 2 )

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

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Flexplate, Performance, Neutral Balance,153 Tooth, Chevy, V8, Each

Part Number: HAY-10-012

Not Yet Reviewed

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

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Pilot Bushing, 0.592 in. I.D., Chevy, Oldsmobile, Each

Part Number: MCL-8-1094-1

2.83 out of 5 stars ( 6 )

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

Yokes, GM 3RL/S44/Mechanics 3/American Axle 1344, 30-spline Inner, Cast Steel, for GM 8.5 in. or GM 9.5 in. Axle As the Pinion Yoke, Strap Style, Each

Part Number: MGR-MG3R-8500

5.0 out of 5 stars ( 2 )

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

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Transmission Dipstick, Locking Replacement, Each

Part Number: PIO-768023

2.71 out of 5 stars ( 7 )

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

Axle Bearing, Chevy, Dodge, Ford, GMC, Jeep, Each

Part Number: TMK-368A

4.0 out of 5 stars ( 1 )

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