1990 GMC Transmission & Drivetrain

Richmond Gear EXCel Ring and Pinion Sets GM85410 GM 8.5/8.6 in. 4.10 Gears

Ring and Pinion Gears, EXCel, 4.10:1 Ratio, 30-spline, Standard Rotation, GM 8.5 in., GM 8.6 in., Set

Part Number: RMG-GM85410

4.0 out of 5 stars ( 8 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

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Estimated Ship Date: Monday 4/27/2026 if shipped by air

FTI Performance MR Series 3,500 Stall Torque Converter MR6082

Torque Converters, MR Series, 1.703 in. Crank Pilot Diameter, 30-spline, 9.500 in. Diameter, Race Usage, TH350, TH400, Each

Part Number: FTI-MR6082

Not Yet Reviewed

Estimated Ship Date: Monday 4/27/2026 if shipped by air

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Estimated Ship Date: Monday 4/27/2026 if shipped by air

TransGo Performance TH400 Shift Kit 400-1&2

Shift Kit, Performance, Buick, Chevy, Oldsmobile, Pontiac, GMC, TH400, 1965-95, Kit

Part Number: TRG-400-1-2

4.76 out of 5 stars ( 21 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

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Estimated Ship Date: Monday 4/27/2026 if shipped by air

FTI Performance MR Series 4,000 Stall Torque Converter MR8082

Torque Converters, MR Series, Hard Hitting, 1.703 in. Crank Pilot Diameter, 30-spline, 9.500 in. Diameter, Race Usage, TH350, TH400, Each

Part Number: FTI-MR8082

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

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Estimated Ship Date: Monday 4/27/2026 if shipped by air

TransGo Performance Shift Kits 700-2&3

Shift Kit, Automatic, Full Manual, GM, 700R4, Towing, Competition, Pro Sreet, Each

Part Number: TRG-700-2-3

4.32 out of 5 stars ( 25 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

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Estimated Ship Date: Monday 4/27/2026 if shipped by air

RAM HDX Clutch Kits 88762HDX

Clutch Kit, Organic, 1 1/8 in.-10-Spline, 11 in. Disc, Buick, Chevy, GMC, Oldsmobile, Pontiac, Kit

Part Number: RAM-88762HDX

4.67 out of 5 stars ( 9 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

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Estimated Ship Date: Monday 4/27/2026 if shipped by air

Perfection OE Replacement 168-Tooth Flywheel 50-6525

Flywheels, OE Replacement, Ductile Iron, 168-tooth, 30 lbs., 6-bolt, External Engine Balance, Chevy, GMC, Each

Part Number: PFT-50-6525

5.0 out of 5 stars ( 11 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

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Estimated Ship Date: Monday 4/27/2026 if shipped by air

Lokar Hi-Tech Flexible Braided Stainless Transmission Dipsticks TD-3350400FM36

Lokar Hi-Tech Flexible Braided Stainless Transmission Dipsticks TD-3350400FM36

Transmission Dipstick, Braided Stainless Steel, Natural, Firewall Mount, TH350, TH400, Each

Part Number: LOK-TD350400FM36

4.79 out of 5 stars ( 38 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

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Estimated Ship Date: Monday 4/27/2026 if shipped by air

B&M Automatic Transmission Deep Pans 70260

Transmission Pan, Deep, Aluminum, Natural, 4L60, 4L60E, Each

Part Number: BMM-70260

4.13 out of 5 stars ( 15 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

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Estimated Ship Date: Monday 4/27/2026 if shipped by air

Moog Premium U-Joints 369

Universal Joint, 1310 Style, Greasable, Steel, Each

Part Number: MOG-369

4.57 out of 5 stars ( 37 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

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Estimated Ship Date: Monday 4/27/2026 if shipped by air

Warn Standard Manual Hubs 9790

Locking Hubs, Manual, Standard, Aluminum, Chrome, Polished Dial, Chevy, Dodge, Ford, International, Jeep, Pair

Part Number: WRN-9790

4.66 out of 5 stars ( 29 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

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Estimated Ship Date: Monday 4/27/2026 if shipped by air

Motive Gear Performance Ring and Pinion Sets G885410 GM 8.5/8.6 in. 4.10 Gears

Gear, Ring and Pinion, 4.10:1 Ratio, GM, 8.5/8.6 in., Set

Part Number: MGR-G885410

4.89 out of 5 stars ( 9 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

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Estimated Ship Date: Monday 4/27/2026 if shipped by air

Alloy USA Mini Spools GM14/MSPL

Mini Spool, 30-spline, Steel, GM 10.5 in. (14-bolt), Each

Part Number: ALY-GM14MSPL

4.13 out of 5 stars ( 8 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

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Estimated Ship Date: Monday 4/27/2026 if shipped by air

Lokar Midnight Series Flexible Braided Stainless Transmission Dipsticks XTD-3350400FM36

Transmission Dipstick, Braided Stainless Steel Housing, Black Handle, Chevy, TH350, TH400, Each

Part Number: LOK-XTD350400FM3

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

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Estimated Ship Date: Monday 4/27/2026 if shipped by air

ACDelco Pilot Bearings and Bushings 14061685

Pilot Bearing, Roller, Steel, Cadillac, Chevy, Pontiac, Each

Part Number: ADO-CT1078

4.68 out of 5 stars ( 22 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

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Estimated Ship Date: Monday 4/27/2026 if shipped by air

B&M Nitrous Holeshot 3,200-3,500 Stall Torque Converter 20484

Torque Converter, Nitrous Holeshot, 3,200-3,500 rpm Stall, GM, THM350/THM400, Each

Part Number: BMM-20484

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

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Estimated Ship Date: Monday 4/27/2026 if shipped by air

Strange U-Joints U1641

Universal Joint, 1350 Style, Steel, Each

Part Number: STR-U1641

3.67 out of 5 stars ( 6 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

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Estimated Ship Date: Monday 4/27/2026 if shipped by air

Lokar Hi-Tech Kickdown Kits KD-2700U

Automatic Transmission Kickdown Cable, Hi-Tech, Black Vinyl, Natural Aluminum Fittings, GM, 700R4, Kit

Part Number: LOK-KD-2700U

4.73 out of 5 stars ( 15 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

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Estimated Ship Date: Monday 4/27/2026 if shipped by air

Timken Pinion Bearings M802048

Bearing, Pinion, 1.625 in. Inside Diameter, Each

Part Number: TMK-M802048

4.67 out of 5 stars ( 30 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

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Estimated Ship Date: Monday 4/27/2026 if shipped by air

RAM Powergrip Clutch Kits 98762

Clutch Kit, Powergrip, Metallic/Organic, 1 1/8 in.- 10-Spline, 11 in. Disc, GM, L6, V8, Kit

Part Number: RAM-98762

4.33 out of 5 stars ( 6 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

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Estimated Ship Date: Monday 4/27/2026 if shipped by air

Lokar Midnight Series Stainless Steel Hi-Tech Kickdown Kits XKD-2700HT

Automatic Transmission Kickdown Cable, Midnight Series Hi-Tech, Black Braided Stainless Steel, Black Aluminum Fittings, GM, 700R4, Kit

Part Number: LOK-XKD2700HT

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

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Estimated Ship Date: Monday 4/27/2026 if shipped by air

Motive Gear Ring and Pinion Sets GM10-373A GM 8.5 in. 3.73 Gears

Ring and Pinion-GM 8.5/8.625

Part Number: MGR-GM10-373A

Not Yet Reviewed

Estimated Ship Date: Monday 4/27/2026 if shipped by air

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Estimated Ship Date: Monday 4/27/2026 if shipped by air

Eaton Posi Performance 28 Spline Differential GM 7.5/7.625 Inch 19599-010

Differential, Posi Performance, Limited Slip, 28-Spline, for use on GM, 7.625 in., Each

Part Number: ETN-19599-010

4.0 out of 5 stars ( 8 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

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Estimated Ship Date: Monday 4/27/2026 if shipped by air

USA Standard Gear Spartan Lockers GM 8.5 Inch SL GM8.5-28

Spartan Differential Locker, GM 8.5 in., 28-spline Axle, Buick, Oldsmobile, Pontiac, Chevy, GMC, Each

Part Number: SPZ-17040

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

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Estimated Ship Date: Monday 4/27/2026 if shipped by air

Moog Super Strength U-Joints 280

Universal Joint, 1310 Style, Greasable, Steel, Each

Part Number: MOG-280

4.71 out of 5 stars ( 34 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

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Estimated Ship Date: Monday 4/27/2026 if shipped by air