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Th400 Transmission

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A proven transmission if there ever was one, the Turbo 400 automatic does duty in daily drivers to Trophy Trucks and everything in between. John's TH400 was built by Bowler Performance Transmissions. Bowler's specialty is H.O. racing applications; however, since the 400 is plenty beefy for this application, the shop didn't need to use many slick, high-zoot components inside, but instead made sure the internals were within specs and functioning properly.