Truck / SUV
Jeep®
Restoration
Stock Replacement
Late Model Muscle
Tools
Gifts, Clothing, & More
Circle Track
Street Rod
Powersports
Paint & Body
Marine
Jr Dragster
Transmission & Drivetrain
Availability
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.
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.
Showing In Stock Items. Show All Items.
Not Showing Customizable Items. View Customizable Items.
Automatic Transmission, TH400 Level 4, Remanufactured, 3 Gears, Deep Pan, Reverse Shift Pattern, SFI 4.1/30.1, Chevrolet, THM400, Each
Part Number: FTI-TH400-4S
Estimated Ship Date: Today
Estimated Ship Date: Today
This product may not be eligible for select promotional offers
BUILD IT WITH SUMMIT!
Summit Racing™ TH400 Transmission Cases SUM-700405
Transmission Case, TH400, Aluminum, SFI Approved, GM, Each
Part Number: SUM-700405
Estimated Ship Date: Today
Estimated Ship Date: Today
Automatic Transmission Package, TH400 level 4, Dipstick & Tube, Cooler Lines, Cooler, FTI ATF Fluid, SST89-0 Racing Billet Stall Converter, Kit
Part Number: FTI-TH400-4K21
Estimated Ship Date: Today
Estimated Ship Date: Today
This product may not be eligible for select promotional offers
Automatic Transmission, Level 4, TH400, Trans-Brake, Chevy Ultrabell, Each
Part Number: FTI-TH400-4UB
Estimated Ship Date: Today
Estimated Ship Date: Today
This product may not be eligible for select promotional offers
Automatic Transmission, 3-Speed, Ultra-Bell Bellhousing, Reverse Shift Pattern, Full Manual Valve Body, GM, TH400, Each
Part Number: FTI-TH400-45UB
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
This product may not be eligible for select promotional offers
Automatic Transmission, TH400 Level 4, Remanufactured, 3 Gears, Deep Pan, Torque Converter, Chevrolet, THM400, Kit
Part Number: FTI-TH400-4K51
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
This product may not be eligible for select promotional offers
Automatic Transmission, Level 4, TH400, Trans-Brake, Chevy, Cut For Ultrabell, Each
Part Number: FTI-TH400-4UBC
Not Yet Reviewed
Estimated Ship Date: May 4, 2026 if ordered today
Estimated Ship Date: May 4, 2026 if ordered today
This product may not be eligible for select promotional offers
Need It Sooner? We recommend these similar substitute parts:
Automatic Transmission Controllers, Kickdown Switches, Buick, Chevy, GMC, Oldsmobile, Pontiac, TH400, Kit
Part Number: BMM-20297
Estimated Ship Date: Today
Estimated Ship Date: Today
This product may not be eligible for select promotional offers
Automatic Transmission Tailhousing, Aluminum, Natural, GM, TH400, Each
Part Number: REI-SH400HR
Estimated Ship Date: Today
Estimated Ship Date: Today
GM TH400 RACING Trans, CHEVY CASE,SHORT SHAFT, 900HP RATED, BILLET REVERSE PATTERN TRANSBRAKE WITH ENGINE BRAKING , 34 ELEMENT SPRAGUE
Part Number: FTI-TH400-4EB2
Not Yet Reviewed
Estimated Ship Date: May 1, 2026 if ordered today
Estimated Ship Date: May 1, 2026 if ordered today
This product may not be eligible for select promotional offers
Automatic Transmission Rebuild Kit, U-Build It, Steels, 4 Clutches, Gaskets, Seals, Filter, Chevy, TH400, Kit
Part Number: FTI-F4019-4
Estimated Ship Date: Today
Estimated Ship Date: Today
Automatic Transmission Rebuild Kit, U-Build It, Steels, 5 Clutches, Gaskets, Seals, Filter, Chevy, TH400, Kit
Part Number: FTI-F4019-5
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Automatic Transmission, Level 3, TH400, Forward Shift, Ultra Bell, 32-Spline Output Shaft, Chevy, Each
Part Number: FTI-TH400-3UB
Estimated Ship Date: Today
Estimated Ship Date: Today
This product may not be eligible for select promotional offers
Automatic Transmission Pumps, High Volume, Cast Iron, Cast-In, 8-Bolt, GM, TH400, Each
Part Number: FTI-F404581
Estimated Ship Date: Today
Estimated Ship Date: Today
Automatic Transmission Valve Body, Trans-Brake Valve Body, Full Manual, Billet Aluminum, Chevy, TH400, Reverse Shift Pattern, Each
Part Number: TOS-4009N
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
GM TH400 RACING Trans, CUT FOR ULTRA BELL,SHORT SHAFT,1100HP RATED, BILLET REVERSE PATTERN TRANSBRAKE VALVE BODY, BILLET ALUMINUM DRUM
Part Number: FTI-TH400-45UBC
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
This product may not be eligible for select promotional offers
Automatic Transmission Rebuild Kit, U-Build It, Steels, 3 Clutches, Gaskets, Seals, Filter, Chevy, TH400, Kit
Part Number: FTI-F4019
Estimated Ship Date: Today
Estimated Ship Date: Today
Automatic Transmission, 3-Speed, Ultra-Bell Bellhousing, Reverse Shift Pattern, Full Manual Valve Body, ER310 Input Shaft Material, GM, TH400, Each
Part Number: FTI-TH400-5UB
Not Yet Reviewed
Estimated Ship Date: May 4, 2026 if ordered today
Estimated Ship Date: May 4, 2026 if ordered today
This product may not be eligible for select promotional offers
Need It Sooner? We recommend these similar substitute parts:
GM TH400 RACING Trans, CUT FOR ULTRA BELL,SHORT SHAFT,1100HP RATED, BILLET REVERSE PATTERN TRANSBRAKE W/ENGINE BRAKING, BILLET ALUMINUM DRUM
Part Number: FTI-TH400-45EB2
Not Yet Reviewed
Estimated Ship Date: May 4, 2026 if ordered today
Estimated Ship Date: May 4, 2026 if ordered today
This product may not be eligible for select promotional offers
Automatic Transmission Pump, Cast Iron, Cast-In, 6-Bolt, GM, TH400, Each
Part Number: FTI-F404561
Estimated Ship Date: Today
Estimated Ship Date: Today
Automatic Transmission, Level 3, TH400, Reverse Shift, Cut for Ultra Bell, Chevy, Each
Part Number: FTI-TH400-3RUBC
Not Yet Reviewed
Estimated Ship Date: May 4, 2026 if ordered today
Estimated Ship Date: May 4, 2026 if ordered today
This product may not be eligible for select promotional offers
Automatic Transmission Clutch Springs, TH400 Direct Drum HP Spring Kit, GM, THM400, Kit
Part Number: FTI-F4067
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Automatic Transmission, Level 3, TH400, Forward Shift, Cut for Ultra Bell, Chevy, Each
Part Number: FTI-TH400-3UBC
Not Yet Reviewed
Estimated Ship Date: May 4, 2026 if ordered today
Estimated Ship Date: May 4, 2026 if ordered today
This product may not be eligible for select promotional offers
Automatic Transmission, Level 3, TH400, Reverse Shift, Ultra Bell, Chevy, Each
Part Number: FTI-TH400-3RUB
Not Yet Reviewed
Estimated Ship Date: May 4, 2026 if ordered today
Estimated Ship Date: May 4, 2026 if ordered today
This product may not be eligible for select promotional offers
LVL-5 TH400 W/O BELLHOUSING
Part Number: FTI-TH400-5UBC
Not Yet Reviewed
Estimated Ship Date: May 4, 2026 if ordered today
Estimated Ship Date: May 4, 2026 if ordered today
This product may not be eligible for select promotional offers
