Know as General Motors (GM) Turbo 400 th400 th-400 Turbo Hydramatic 400 THM400
TH400 Gear Ratios: First Gear - 2.48 to 1.00 Second Gear - 1.48 to 1.00 Third Gear - 1.00 to 1.00 Reverse - 2.07 to 1.00
All of our TH400 Transmissions are Professionally Remanufactured and Tested for the upmost in Quality. Up to 1200 plus HP
Most th350 Transmissions are custom built for your specific performance needs
These turbo 400 transmissions comes with the best warrantees in the business. All TH400 Transmissions this Free in the United States.