Performance & Replacement Transmission & Drivetrain Parts

Automatic Transmission Pan, Stock, Steel, Chrome, GM TH400, Each

Part Number: TCI-228011

4.62 out of 5 stars ( 13 )

Estimated Ship Date: Monday 2/2/2026

Gear, Ring and Pinion, 4.33:1 Ratio, GM, 12-Bolt Car, 4 Series, Set

Part Number: RMG-79-0074-1

3.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 2/2/2026

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Differential, No-Slip Traction System, 30-Spline, GM, 12-Bolt, Each

Part Number: PWT-92-0788-3005

3.88 out of 5 stars ( 8 )

Estimated Ship Date: Monday 2/2/2026

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Gear, Ring and Pinion, 3.73:1 Ratio, GM, 8.2 in., Buick, Pontiac, Set

Part Number: MGR-BP882373

3.67 out of 5 stars ( 3 )

Estimated Ship Date: Monday 2/2/2026

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Torque Converter, Nitrous Holeshot, 2,300-2,500 rpm Stall Range, THM350/THM400, Each

Part Number: BMM-20480

4.0 out of 5 stars ( 12 )

Estimated Ship Date: Monday 2/2/2026

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Transmission Pan, Deep, Steel, EDP Coated Black, GM TH400, Each

Part Number: MRG-9786BMRG

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 2/2/2026

Gear, Ring and Pinion, 4.56:1 Ratio, GM, 8.5/8.6 in., 10-Bolt, 3 Series, Set

Part Number: RMG-6901671

2.67 out of 5 stars ( 3 )

Estimated Ship Date: Monday 2/2/2026

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Gear, Ring and Pinion, 4.11:1 Ratio, GM, 8.5/8.6 in., 10-Bolt, Set

Part Number: MGR-GM10-411

5.0 out of 5 stars ( 9 )

Estimated Ship Date: Monday 2/2/2026

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Wheel Bearing and Hub Assemblies, Steel, Natural, Front, 4WD, Each

Part Number: ADO-13549864

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 2/2/2026

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Drive Shaft, Drive Shaft, Rear, Chevrolet, GMC, Each

Part Number: ADO-84669661

4.5 out of 5 stars ( 4 )

Estimated Ship Date: Monday 2/2/2026

• Oversize $39.99

Filter, Automatic Transmission Fluid Filter, Replacement, Chevrolet, Car, Each

Part Number: ADO-24295812

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 2/2/2026

Differential Cover, 10-bolt, Steel, Chrome, GM 8.2 in., GM 8.5 in., GM 8.6 in., Each

Part Number: YGA-32017

4.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 2/2/2026

Clutch Kit, Street 650 Clutch Conversion Kits, Organic, Diaphragm, 1.125 in. Diameter Shaft, 26-Spline, 10.500 in. Diameter Disc, Dodge, Plymouth, Kit

Part Number: HAY-92-1100

4.75 out of 5 stars ( 4 )

Estimated Ship Date: Monday 2/2/2026

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Driveshaft Support Carrier Bearings, Replacement, Checker, Chevrolet, Dodge, Ford, GMC, International, Isuzu, Olds, Plymouth, Studebaker, Each

Part Number: ADO-HB88107A

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 2/2/2026

Clutch Kit, Powergrip, Metallic/Organic, 1 1/8 in.- 10-Spline, 10.5 in. Disc, GM, V6, V8, Set

Part Number: RAM-98760

4.43 out of 5 stars ( 7 )

Estimated Ship Date: Monday 2/2/2026

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Gear, Ring and Pinion, 4.33:1 Ratio, GM, 12-Bolt Car, 4 Series, Set

Part Number: RMG-6903781

Not Yet Reviewed

Estimated Ship Date: Monday 2/2/2026

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Transmission Pan Gasket, Silicone/Metal, 8L45, 6L90, 8L90, Cadillac, Chevrolet, GMC, Each

Part Number: ADO-24260071

4.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 2/2/2026

Ring and Pinion Gears, 3.90:1 Ratio, 30-spline, Standard Ring Gear Rotation, GM 8.5 in., GM 8.6 in., Set

Part Number: YGA-24159

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 2/2/2026

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Clutch Kit, 1.125 in. - 10-spline, Organic Disc, Pressure Plate, Buick, Chevy, GMC, Oldsmobile, Pontiac, Kit

Part Number: LUK-04-021

3.83 out of 5 stars ( 6 )

Estimated Ship Date: Monday 2/2/2026

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Clutch Disc, Dual Friction, 1 1/8 in. Diameter Shaft, 26-Spline, 11 in. Disc, Buick, Chevy, GMC, Pontiac, V8, Each

Part Number: CTF-DF384148

4.83 out of 5 stars ( 6 )

Estimated Ship Date: Monday 2/2/2026

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Flexplate Dust Shield, Steel, Chrome, Chevy, 700R4, Each

Part Number: MRG-5135

2.25 out of 5 stars ( 8 )

Estimated Ship Date: Monday 2/2/2026

Gear, Ring and Pinion, 3.42:1 Ratio, GM, 8.5/8.6 in., Set

Part Number: MGR-G885342

5.0 out of 5 stars ( 6 )

Estimated Ship Date: Monday 2/2/2026

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

Part Number: MGR-G885430

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 2/2/2026

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Throwout Bearing, Hydraulic, Muncie Four Speed, Each

Part Number: MCL-1300

3.75 out of 5 stars ( 8 )

Estimated Ship Date: Monday 2/2/2026

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Pressure Plate, Centerforce II, Diaphragm, 11 in. Disc Diameter, Buick, Chevy, Dodge, Ford, GMC, Oldsmobile, Pontiac, Each

Part Number: CTF-CFT165552

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 2/2/2026

• Free Shipping