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This FTI Performance TH400 Racing Transmission Level 4.5 1100HP Reverse Pattern Sportsman Transbrake GM Ultrabell is a performance transmission assembly configured for a specific racing drivetrain and power range. Confirm case and bellhousing, gearset, shift pattern, transbrake, converter, flexplate, cooler, mount, driveshaft, and electronics before ordering.
Key Features
- Built around the transmission, power rating, shift pattern, and braking strategy identified for this configuration
- Converter, cooler, mount, crossmember, driveshaft, linkage, electronics, and fluid requirements must be planned together
- Exact manufacturer part number TH400-4.5UB
- New FTI Performance component in the listed configuration
Fitment
Vehicle fitment is not assigned from transmission name alone. Verify the exact transmission, engine interface, spline, bolt pattern, case or bellhousing, dimensions, electronics, stall requirements, and complete drivetrain configuration.
Specifications
| Brand | FTI Performance |
|---|---|
| Manufacturer Part Number | TH400-4.5UB |
| Product Type | Transmissions |
| Condition | New |
| Configuration | TH400 Racing Transmission Level 4.5 1100HP Reverse Pattern Sportsman Transbrake GM Ultrabell |
| Transmission Compatibility | TH400 |
| Power Rating | 1100HP |
What's Included
One FTI Performance transmission in the exact configuration shown. Converter bolts, flexplate, fluid, cooler, lines, wiring, controller, mount, crossmember, driveshaft parts, seals, and installation hardware are included only when expressly stated.
About FTI Performance
FTI Performance develops performance and racing torque converters, transmissions, internal components, cooling parts, and lubricants for properly matched street and competition drivetrains.
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- Shop all FTI Performance products
Frequently Asked Questions
What must be confirmed before ordering the TH400 Racing Transmission Level 4.5 1100HP Reverse Pattern Sportsman Transbrake GM Ultrabell?
Verify the engine pattern, case, bellhousing, input and output, gearset, shift pattern, transbrake, speedometer, converter, electronics, mount, driveshaft, cooler, and intended power level.
Does this transmission require a core return?
Core requirements depend on the exact configuration and seller terms. Confirm the core charge, acceptable core condition, return address, packaging, and freight responsibility before ordering.
Which converter and fluid should be used?
Use the converter specification and fluid type approved for the exact transmission build, vehicle weight, gearing, power, and operating temperature.
Installation Instructions
Confirm the exact FTI part number and complete drivetrain specification. Disconnect the battery and support the vehicle safely. Follow FTI's current instructions and the vehicle service procedure for converter seating, clearances, fasteners, fluid, cooler lines, wiring, linkage, driveshaft, and initial fill. Verify converter-to-flexplate clearance before tightening. Check fluid level at the specified temperature, inspect for leaks and abnormal noise, and recheck operation before full-load use.
FTI Performance
Shop FTI Performance torque converters, racing transmissions, internal components, coolers, pans, bellhousings, valve parts, and transmission fluid by exact manufacturer part number and drivetrain specification. Confirm the complete engine, transmission, converter, control, cooling, and driveline combination before ordering. FTI Performance Drivetrain Products FTI develops street and racing torque converters, transmissions, and supporting components for properly matched performance drivetrains. Transmission name alone does not establish vehicle fitment, so product pages separate verified year-make-model applications from transmission-specific compatibility. Choosing the Correct FTI Product Match the exact manufacturer part number and transmission family Confirm engine pattern, pilot, input spline, flexplate, bolt circle, and converter spacing Verify stall range, lock-up strategy, clutch count, vehicle weight, gearing, tire size, and intended use Plan electronics, fluid, cooler, li...
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