Performance & Replacement Transmission & Drivetrain Parts

Torque Converters, Twister 3/4 Race, 1.703 in. Crank Pilot Diameter, 30-spline, 9.600 in. Diameter, 2,400 rpm Advertised Flash Stall, TH400, Each

Part Number: HAY-97-1D24Q

Not Yet Reviewed

Estimated Ship Date: Dec 1, 2025 if ordered today

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Bearings, Rear Case, Shims, Automatic, TH400, Kit

Part Number: TCI-224400

4.92 out of 5 stars ( 12 )

Estimated Ship Date: Tomorrow

Seal, Automatic Transmission Shift Shaft, Steel/Rubber, GM, Each

Part Number: NTL-8792S

3.67 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

Torque Converter, Nitrous Holeshot,3.400 3,800 rpm Stall Range, Chevy, THM350/THM400, Each

Part Number: BMM-20482

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Nov 26, 2025 if ordered today

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Sprag/Roller Clutch, 29-Element, Forward Sprag, Low-Reverse Clutch, GM, 4L60E/700R4, Each

Part Number: TCI-373601

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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

Part Number: LOK-TD-3400TM

3.67 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

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Automatic Transmission Lever, Steel, Natural, Each

Part Number: HUU-1050180

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Tomorrow

Automatic Transmission Filters, Black Fiber Gaskets, THM700-R4/4L60/MD8, Bentley, Buick, Cadillac, Chevy, GMC, Olds, Pontiac, Rolls-Royce, Kit

Part Number: ATP-TF96

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

Torque Converter, Nitrous Holeshot, 2,800-3,200 rpm Stall Range, Chevy, THM350/THM400, Each

Part Number: BMM-20481

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Tomorrow

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Automatic Transmission Bushing, 2.004 in. O.D., 0.605 in. Length, BMW, Buick, Cadillac, Chevy, GMC, Isuzu, Jeep, Olds, Opel, Pontiac, Suzuki, Each

Part Number: DUR-44034

Not Yet Reviewed

Estimated Ship Date: Tomorrow

Automatic Transmission Controller Component, Bluetooth Adapter, for Use Adapting the TCI EZ-TCU To Work with Bluetooth, GM, TCI, Each

Part Number: TCI-302611

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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Seal, Automatic Transmission Selector Shaft, Each

Part Number: TMK-8792S

5.0 out of 5 stars ( 6 )

Estimated Ship Date: Tomorrow

TV Boost Valve, .500, Racing, Pro-Street, 700R4/200-4R, Kit

Part Number: TRG-7-500

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

Shifter, Magnum Grip Hill Killer, Gated, Billet Aluminum, Black Anodized, Polaris, Each

Part Number: XDR-81168

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

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Torque Converter, Holeshot, 2,800-3,200 rpm Stall Range, Chevy, THM350/THM400, Each

Part Number: BMM-20413

3.67 out of 5 stars ( 6 )

Estimated Ship Date: Tomorrow

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Boost Valve/Bushing, Intermediate and Reverse, 700R4/200-4R, Kit

Part Number: TRG-7-300

4.67 out of 5 stars ( 6 )

Estimated Ship Date: Tomorrow

Transmission Dipstick, Braided Stainless Steel, Natural, Transmission Mount, 700R4, Each

Part Number: LOK-TD-3700TM

2.67 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

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Torque Converters, Twister 3/4 Race, Street/Strip, 2,800-3,200 rpm Stall Speed Range, 30-spline, 9.600 in. Diameter, Chevy THM700-R4/4L60/MD8, Each

Part Number: HAY-97-1E28Q

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Dec 1, 2025 if ordered today

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Boost Valve/Bushing, .472 TV, 700R4/200-4R, Towing/Heavy Duty/Off-Road, Kit

Part Number: TRG-7-472

4.8 out of 5 stars ( 5 )

Estimated Ship Date: Tomorrow

Direct Springs for TH400 High Gear(16)

Part Number: TCI-221600

3.5 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

Transmission Dipstick, Black, Braided Stainless Steel, Bellhousing Mount, Chevy, 700R4, Each

Part Number: LOK-XTD-3700TM

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Automatic Transmission Direct Drum, Steel, Vaccu Melt 300 Input Shaft, Chevy, TH400, Kit

Part Number: TCI-223600

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Automatic Transmission Bushings, Extension Housing, GM Transmission, Each

Part Number: DUR-GMT-3-2TG

Not Yet Reviewed

Estimated Ship Date: Tomorrow

Automatic Transmission Rebuild Kit, Racing, Chevy, TH400, Kit

Part Number: TCI-228600

Not Yet Reviewed

Estimated Ship Date: Tomorrow

Automatic Transmission Rebuild Components, LCS Governor Cover Gasket, 3.25 in. Diameter, Rubber, GM, TH350, TH200C, THM700-R4/4L60/MD8, Each

Part Number: ATP-SO40

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow