1981 GMC K1500 Transmission & Drivetrain - In Stock Filter Options - Vendor In Stock Filter Options

FTI Performance Torque Converters MR0086

TORQUE CONVERTER

Part Number: FTI-MR0086

Not Yet Reviewed

Estimated Ship Date: Apr 8, 2026 if ordered today

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Estimated Ship Date: Apr 8, 2026 if ordered today

Call to Order

FTI Performance Torque Converters MR6391

TORQUE CONVERTER

Part Number: FTI-MR6391

Not Yet Reviewed

Estimated Ship Date: Apr 8, 2026 if ordered today

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Estimated Ship Date: Apr 8, 2026 if ordered today

Lokar Hi-Tech Kickdown Kits XKD-2350TPU

Automatic Transmission Kickdown Cables, Hi-Tech Kickdown Kits, Black Vinyl Jacket, 42.00 in. Cable Length, Fittings, GM, THM350, Kit

Part Number: LOK-XKD-2350TPU

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 Ring and Pinion Sets YG GM12T-513 GM 12 in. 5.13 Gears

High performance Yukon Ring & Pinion gear set for GM 12 bolt truck in a 5.13 ratio

Part Number: YGA-24463

Not Yet Reviewed

Estimated Ship Date: Apr 6, 2026 if ordered today

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Estimated Ship Date: Apr 6, 2026 if ordered today

Yukon Gear & Axle Ring and Pinion Sets YG GM8.5-513 GM 8.5/8.6 in. 5.13 Gears

Ring and Pinion Gears, 5.13:1 Ratio, 30-spline, Standard Ring Gear Rotation, GM 8.5/8.6 in., Set

Part Number: YGA-24163

Not Yet Reviewed

Estimated Ship Date: Apr 6, 2026 if ordered today

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Estimated Ship Date: Apr 6, 2026 if ordered today

USA Standard Gear Ring and Pinion Sets ZG GM12T-456 GM 8.875 in. (12-bolt) truck 4.56 Gears

USA Standard Ring & Pinion gear set for GM 12 bolt truck in a 4.56 ratio

Part Number: SPZ-36179

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

Richmond Gear Differential Carrier Rebuild Kits XL-4048

Differential Carrier Gear Kit

Part Number: RMG-XL-4048

Not Yet Reviewed

Estimated Ship Date: Mar 26, 2026 if ordered today

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Estimated Ship Date: Mar 26, 2026 if ordered today

Richmond Gear EXCel Mini Spools XL-5145

Mini Spool, MINI SPOOL GM 12 BOLT CAR

Part Number: RMG-XL-5145

Not Yet Reviewed

Estimated Ship Date: Mar 26, 2026 if ordered today

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Estimated Ship Date: Mar 26, 2026 if ordered today

Motive Gear Ten Factory Axle Shafts MG20132B

Axle Shaft, Direct Fit, 4340 Chromoly, 30-Spline, 19.150 in. Length, Chevy, GMC, Each

Part Number: MGR-MG20132B

Not Yet Reviewed

Estimated Ship Date: Mar 26, 2026 if ordered today

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Estimated Ship Date: Mar 26, 2026 if ordered today

Motive Gear Super Ring and Pinion Gear Installation Kits R10RASKT

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

Part Number: MGR-R10RASKT

Not Yet Reviewed

Estimated Ship Date: Mar 26, 2026 if ordered today

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Estimated Ship Date: Mar 26, 2026 if ordered today

Powertrax Differential Carrier Replacement Parts 1920604SAJ

SPACER

Part Number: PWT-1920604SAJ

Not Yet Reviewed

Estimated Ship Date: Apr 24, 2026 if ordered today

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Estimated Ship Date: Apr 24, 2026 if ordered today

Motive Gear Basic Ring and Pinion Gear Installation Kits R10RET

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

Part Number: MGR-R10RET

2.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 26, 2026 if ordered today

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Estimated Ship Date: Mar 26, 2026 if ordered today

Motive Gear Basic Ring and Pinion Gear Installation Kits R10RT

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

Part Number: MGR-R10RT

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 26, 2026 if ordered today

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Estimated Ship Date: Mar 26, 2026 if ordered today

Powertrax Grip Pro Traction Systems GM 8.875 Inch (12-bolt), truck GT238730

Differential Carrier, Rear - Grip Pro GM 8.875" Truck 30 Spline 2.76-3.42

Part Number: PWT-GT238730

Not Yet Reviewed

Estimated Ship Date: Apr 24, 2026 if ordered today

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Estimated Ship Date: Apr 24, 2026 if ordered today

Powertrax Differential Carrier Replacement Parts 8021001ZBG

Spring, SPRING,COMPRSN,15 LB/IN,IN, NS

Part Number: PWT-8021001ZBG

Not Yet Reviewed

Estimated Ship Date: Apr 24, 2026 if ordered today

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Estimated Ship Date: Apr 24, 2026 if ordered today

Powertrax Differential Carrier Replacement Parts 8031001ZAV

Spring, SPRING,COMPRSN, 500 LB/IN,OUTR

Part Number: PWT-8031001ZAV

Not Yet Reviewed

Estimated Ship Date: Apr 24, 2026 if ordered today

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Estimated Ship Date: Apr 24, 2026 if ordered today

Richmond Gear Spool Bearings 29-0013-1

Differential Spool Bearing Kit; Fits GM 8.5 in. 10 Bolt; Incl. Bearings/Bearing Races

Part Number: RMG-29-0013-1

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 27, 2026 if ordered today

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Estimated Ship Date: Mar 27, 2026 if ordered today

Powertrax Replacement Drivers 424003DGE2

SLOTTED DRIVER

Part Number: PWT-424003DGE2

Not Yet Reviewed

Estimated Ship Date: Apr 24, 2026 if ordered today

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Estimated Ship Date: Apr 24, 2026 if ordered today

Powertrax Replacement Couplers 5201001CJR

COUPLER

Part Number: PWT-5201001CJR

Not Yet Reviewed

Estimated Ship Date: Apr 24, 2026 if ordered today

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Estimated Ship Date: Apr 24, 2026 if ordered today

Powertrax Replacement Couplers 5201004CJY

COUPLER

Part Number: PWT-5201004CJY

Not Yet Reviewed

Estimated Ship Date: Apr 24, 2026 if ordered today

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Estimated Ship Date: Apr 24, 2026 if ordered today

Richmond Gear Full Spools 81-1028-1

Spool, Full Size, Steel, 28-Spline, 10-Bolt, GM 8.5 in., Each

Part Number: RMG-81-1028-1

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 26, 2026 if ordered today

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Estimated Ship Date: Mar 26, 2026 if ordered today

Motive Gear Ring Gear Fasteners RGB5-LW

Lockwasher, LOCKWASHER 3/8" SPLIT ZINC

Part Number: MGR-RGB5-LW

Not Yet Reviewed

Estimated Ship Date: Mar 26, 2026 if ordered today

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Estimated Ship Date: Mar 26, 2026 if ordered today

Motive Gear Timken Differential Carrier Bearing Races 02820T

Differential Bearing Race, 2.875 in. Diameter, Each

Part Number: MGR-02820T

Not Yet Reviewed

Estimated Ship Date: Mar 26, 2026 if ordered today

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Estimated Ship Date: Mar 26, 2026 if ordered today

Motive Gear Basic Ring and Pinion Gear Installation Kits GM12IK

Ring and Pinion Installation Kit, GM, 8.875 in., Passenger Car, Kit

Part Number: MGR-GM12IK

Not Yet Reviewed

Estimated Ship Date: Mar 26, 2026 if ordered today

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Estimated Ship Date: Mar 26, 2026 if ordered today

USA Standard Gear Spartan Locker Replacement Crosspins SL XP-GM8.5

Crosspin, Replacement, Steel, Spartan, GM 8.5 in., Each

Part Number: SPZ-17024

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