Performance & Replacement Transmission & Drivetrain Parts

Building awesome horsepower is only part of the story. You need to deliver all that power to your car or truck’s wheels! We’ve got torque-hungry high performance automatic...

Building awesome horsepower is only part of the story. You need to deliver all that power to your car or truck’s wheels! We’ve got torque-hungry high performance automatic and manual transmissions for street and strip applications, torque converters and clutch sets, flexplates and flywheels, plus limited-slip differentials, spools, lockers, ring and pinion sets, driveshafts, U-joints, axles, bearings, C-clip eliminator kits, transfer cases, shift kits, and rebuild kits. We also have a wide selection of trans-brakes, shifters, cables, and accessories—everything you need to put the power to the ground, Summit style.

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Spidertrax Off-Road Front Axle Stubs AXLLSKU40M

Axle Shafts, Front Stubs, 7.891 in. Length, 40 Spline, 300M Billet, Each

Part Number: SDR-AXLLSKU40M

Not Yet Reviewed

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Summit Racing™ Pro LS Transmission Adapters SUM-LSTOZ32

Transmission Adapter Kit, Bellhousing Adapter, Complete Kit- Custom Flywheel, Dowels, Pro hardware Kit, Chevy LS to Nissan Z32 5-Speed, Kit

Part Number: SUM-LSTOZ32

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RevMax Custom Coated Transmission Pump Plates 68RFE-903

Pump Plate, Custom Coated, 68RFE, Dodge, Ram, Each

Part Number: RVM-68RFE-903

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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RAM Truck Pulling Custom Order Clutch Kits 45750

RAM Truck Pulling Custom Order Clutch Kits 45750

Clutch Kit, Truck Pull, Custom Order, Dual Disc, Sintered Iron, 11 in., 168-Tooth Flywheel, Internal Balance, Deep Bellhousing, SBC, BBC, Kit

Part Number: RAM-45750

Not Yet Reviewed

Estimated Ship Date: Dec 29, 2025 if ordered today

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Estimated Ship Date: Dec 29, 2025 if ordered today

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RAM Truck Pulling Custom Order Clutch Kits 45760

Clutch Kit, Truck Pull, Custom Order, Dual Disc, Sintered Iron, 11 in., 168-Tooth Flywheel, Internal Balance, Standard Depth Bellhousing, SBC, BBC

Part Number: RAM-45760

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Dec 29, 2025 if ordered today

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Estimated Ship Date: Dec 29, 2025 if ordered today

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RAM Truck Pulling Custom Order Clutch Kits 45770

Clutch Kit, Truck Pull, Custom Order, Dual Disc, Sintered Iron, 11 in., 164-Tooth Flywheel, Internal Balance, Standard Depth Bellhousing, SBF, Kit

Part Number: RAM-45770

Not Yet Reviewed

Estimated Ship Date: Dec 29, 2025 if ordered today

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RAM Truck Pulling Custom Order Clutch Kits 45775

Clutch Kit, Truck Pull, Custom Order, Dual Disc, Sintered Iron, 11 in., 164-Tooth Flywheel, Internal Balance, Deep Bellhousing, SBF, Kit

Part Number: RAM-45775

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Estimated Ship Date: Dec 29, 2025 if ordered today

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RAM Truck Pulling Custom Order Clutch Kits 45780

Clutch Kit, Truck Pull, Custom Order, Dual Disc, Sintered Iron, 11 in., 184-Tooth Flywheel, Internal Balance, Standard Depth Bellhousing, BBF, Kit

Part Number: RAM-45780

Not Yet Reviewed

Estimated Ship Date: Dec 29, 2025 if ordered today

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RAM Truck Pulling Custom Order Clutch Kits 45785

Clutch Kit, Truck Pull, Custom Order, Dual Disc, Sintered Iron, 11 in., 184-Tooth Flywheel, Internal Balance, Deep Bellhousing, BBF, Kit

Part Number: RAM-45785

Not Yet Reviewed

Estimated Ship Date: Dec 29, 2025 if ordered today

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RAM Truck Pulling Custom Order Clutch Kits 45800

Clutch Kit, Truck Pull, Custom Order, Single Disc, Sintered Iron, 11 in., 168-Tooth Flywheel, Internal Balance, SBC, BBC, Kit

Part Number: RAM-45800

Not Yet Reviewed

Estimated Ship Date: Dec 29, 2025 if ordered today

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RAM Truck Pulling Custom Order Clutch Kits 45810

Clutch Kit, Truck Pull, Custom Order, Single Disc, Sintered Iron, 11 in., 164-Tooth Flywheel, Internal Balance, SBF, Kit

Part Number: RAM-45810

Not Yet Reviewed

Estimated Ship Date: Dec 29, 2025 if ordered today

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RAM Truck Pulling Custom Order Clutch Kits 45820

Clutch Kit, Truck Pull, Custom Order, Single Disc, Sintered Iron, 11 in., 184-Tooth Flywheel, Internal Balance, BBF, Kit

Part Number: RAM-45820

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Estimated Ship Date: Dec 29, 2025 if ordered today

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Yank Performance Eliminator Series Custom 4,000 Stall Torque Converter ELIM94000PG3

Torque Converter, 4000 stall 245mm non lock up, Powerglide 30 spline input

Part Number: YNK-ELIM94000PG3

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Trail-Gear Rock Assault Custom Axle Housings 305037-KIT

Axle Housings, Rock Assault Front/Rear Axle Housings, Fabricated 3/8 in. Mild Steel, Natural, 3.500 in. Axle Tube Diameter, Toyota 8.0 (7.8) in., Each

Part Number: TGI-305037-KIT

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Trail-Gear Rock Assault Custom Axle Housings 305036-KIT

Axle Housings, Rock Assault Front/Rear Axle Housings, Fabricated 1/4 in. Mild Steel, Natural, 3.500 in. Axle Tube Diameter, Toyota 8.0 (7.8) in., Each

Part Number: TGI-305036-KIT

Not Yet Reviewed

Estimated Ship Date: Jan 13, 2026 if ordered today

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Estimated Ship Date: Jan 13, 2026 if ordered today

Trail-Gear Rock Assault Custom Axle Housings 306561-KIT

Axle Housing , Fabricated Front Axle Builder Kit - 8-inch, E-Locker 3/8-inch Wall

Part Number: TGI-306561-KIT

Not Yet Reviewed

Estimated Ship Date: Jan 13, 2026 if ordered today

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Estimated Ship Date: Jan 13, 2026 if ordered today

Advance Adapters Pilot Bushings 716193

Pilot Bushing, Custom Extended Pilot Bushing, Solid, Bronze, Chevy to Ford transmission, Each

Part Number: ADD-716193

4.83 out of 5 stars ( 6 )

Estimated Ship Date: Today

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Advance Adapters Pilot Bearings 716149-NS

Pilot Bushing, Custom Extended Pilot Bushing, Solid, Roller, Chevy Engines to Toyota Truck Transmissions, Each

Part Number: ADD-716149-NS

2.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Rekluse Clutch Core Manual TorqDrive Clutch Kits RMS-7115006

CORE MANUAL TORQ-DRIVE CLUTCH (HD) - Harley-Davidson® Sportster XL 1200 50th Anniversary (2007), Sportster XL 1200C Custom (2003-2019), Sportster XL

Part Number: REK-RMS-7115006

Not Yet Reviewed

Estimated Ship Date: Dec 22, 2025 if ordered today

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Estimated Ship Date: Dec 22, 2025 if ordered today

TransGo Automatic Transmission Shift Valves 7-4-V

Shift Valve, Custom 3-4 Shift, THM 700R4, Each

Part Number: TRG-7-4-V

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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FTI Performance SST Series Custom Stall Torque Converter SST89-6T

Torque Converters, SST Series, 9 in. Diameter, Aluminum Stator, Diode, Turbo Spline, Custom, THM400, THM350, Each

Part Number: FTI-SST89-6T

Not Yet Reviewed

Estimated Ship Date: Jan 12, 2026 if ordered today

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Estimated Ship Date: Jan 12, 2026 if ordered today

BD Diesel Automatic Transmission Valve Bodies 1030472

Valve Body - 2006-2007 Duramax LBZ Allison 1000 (Custom Rebuild Only)

Part Number: BDD-1030472

Not Yet Reviewed

Estimated Ship Date: Dec 29, 2025 if ordered today

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Estimated Ship Date: Dec 29, 2025 if ordered today

FTI Performance SST Series Custom Stall Torque Converter SST89-0T

Torque Converters, SST Series, 9 in. Diameter, Aluminum Stator, Diode, Turbo Spline, Custom, THM400, THM350, Each

Part Number: FTI-SST89-0T

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Estimated Ship Date: Jan 12, 2026 if ordered today

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Estimated Ship Date: Jan 12, 2026 if ordered today

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FTI Performance SST Series Custom Stall Torque Converter SST89-7

Torque Converters, SST Series, 9 in. Diameter, Aluminum Stator, Diode, Turbo Spline, Custom, THM400, THM350, Each

Part Number: FTI-SST89-7

Not Yet Reviewed

Estimated Ship Date: Jan 12, 2026 if ordered today

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Estimated Ship Date: Jan 12, 2026 if ordered today

HardDrive Full Spoke Billet Pulleys 576-01273

Drive Pulley, Full Spoke Billet, Custom Style, 66-tooth, Aluminum, Chrome, 1.00 in. Belt Width, Rear Wheel Position, Harley-Davidson®, Each

Part Number: HDD-576-01273

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