Performance & Replacement Transmission & Drivetrain Parts

Transmission Upgrade Kit, Shift Improver, GM, TH400, TH375, M40, Each

Part Number: BMM-20260

4.81 out of 5 stars ( 16 )

Estimated Ship Date: Today

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: Today

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HD REMAN VALVE BODY

Part Number: SOX-GM053-HD

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

• Core Charge $50.00
• Free Shipping
• $10.00 Summit Bucks

Clutch Kits, Heavy-Duty Replacement, 1.375 in. - 10-spline, Single Organic Disc, 13.000 in. Diameter, Pressure Plate, Dodge, 5.9L Diesel, Kit

Part Number: VAI-NMU70279-01

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

• Free Shipping

Automatic Transmission Front Pump, Cast Aluminum, GM, 4L60, 700R4, Each

Part Number: TCI-373301

3.67 out of 5 stars ( 3 )

Estimated Ship Date: Today

• Free Shipping

Clutch Kit, HDX, Organic, 1 in.- 23-Spline, 11.0 in. Disc, Ford, Kit

Part Number: RAM-88955HDX

Not Yet Reviewed

Estimated Ship Date: Today

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Differential, Eaton Detroit Truetrac, 35-Spline, Dana 80, 11.5 in. Ring Gear, 4.10 + up, Each

Part Number: ETN-915A450

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping
• $75.00 Summit Bucks

Flexplate, 168-Tooth, External Engine Balance, 1-Piece Rear Main Seal, Chevy, Small Block, GM V6, Each

Part Number: SUM-G104STK

4.2 out of 5 stars ( 5 )

Estimated Ship Date: Today

Dura Grip Positraction Carrier, Traction-Loc, GM 8.5 Oldsmobile Axle, 28 Spline, 3 Series Carrier, Each

Part Number: YGA-10301

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

• Free Shipping

Torque Converters, ESR Series, 1.335 in. Crank Pilot Diameter, Lockup Compatible, 22-spline, 10.000 in. Diameter, 722.6, NAG1, Each

Part Number: FTI-ESRT82600

Not Yet Reviewed

Estimated Ship Date: Today

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Clutch Kit

Part Number: CTF-KCFT508110

Not Yet Reviewed

Estimated Ship Date: Today

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Clutch Kit, HDX, 12 in., Steel Flywheel, 6-Bolt, 168 Tooth, 26 Spline, Chevrolet, LS, Kit

Part Number: RAM-25-831

Not Yet Reviewed

Estimated Ship Date: Today

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Automatic Transmission, Pro Powerglide Level 5.5, Two Gears, 17-spline Input, Deep Aluminum Pan, Trans-brake, SFI 4.1/30.1, Chevrolet, Each

Part Number: FTI-PPG55

Not Yet Reviewed

Estimated Ship Date: Dec 22, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Differential Carrier, Dura Grip Positraction, Clutch-type, 33-spline, Nodular Iron, Rear, GM 9.5 in., GM 9.76 in., Each

Part Number: YGA-26049

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Bearings, Pinion, Front/Rear Bearings, Tapered Bearing Pinion Support, Solid Pinion Spacer, Seal, Ford, 9 in., 28-Spline, Kit

Part Number: STR-N1923

4.22 out of 5 stars ( 9 )

Estimated Ship Date: Today

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Differential Carrier, Dura Grip Positraction, Traction-Lok, 28-spline, Rear, Ford 7.5 in., Ford, Mercury, Each

Part Number: YGA-26034

4.75 out of 5 stars ( 8 )

Estimated Ship Date: Today

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Flywheel, Nodular Iron, 153-Tooth, External Balance, 1-Piece Rear Main, Chevy, Small Block, Each

Part Number: MCL-450360

5.0 out of 5 stars ( 8 )

Estimated Ship Date: Today

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Automatic Shifter, Winters Sidewinder, Forward Pattern Valve Body, Standard Gate, Chrysler, Torqueflite 727, Each

Part Number: WPP-207-1

4.54 out of 5 stars ( 13 )

Estimated Ship Date: Today

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Flexplate, Steel, SFI, Internal Balance, 8-Bolt Crank, Chevy, LS, Kit

Part Number: ATI-915737

Not Yet Reviewed

Estimated Ship Date: Today

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Automatic Shifter, Electronic Sport Shifters, Detent, 4.000 in. Straight Black Stick, 3/8-24 in., Black Round Knob, 6R80E, Each

Part Number: LOK-ES6R80HXRB

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Flexplate, 168-Tooth, External Engine Balance, 2-Piece Rear Main Seal, Chevy, Big Block, 454, Each

Part Number: SUM-G102STK

4.45 out of 5 stars ( 11 )

Estimated Ship Date: Today

GM NON LOCK-UP TH350, TH400 3400-3600 STALL

Part Number: FTI-SR6082

Not Yet Reviewed

Estimated Ship Date: Today

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Clutch Kit, Performance, Single Disc, 26-Spline, 1.125 in. Diameter, 12 in. Disc Diameter, Metallic/Organic, with Flywheel, 6-Bolt, Chevy, LS, Kit

Part Number: RAM-25-931

Not Yet Reviewed

Estimated Ship Date: Today

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Differential, Detroit Truetrac, 33-Spline, Ford 8.8 in., Each

Part Number: ETN-913A701

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

• Free Shipping
• $75.00 Summit Bucks

Automatic Transmission, Remanufactured, Forward Shift Pattern, Automatic/Manual Valve Body, BOP, TH350, Each

Part Number: TCI-311100

3.5 out of 5 stars ( 2 )

Estimated Ship Date: Today

• Free Shipping