J.W. Performance Street Lethal TH400 Transmissions

Originally released in 1964, the TH400 has proven again and again to be an ideal racing automatic. From hot rods to Pro-Mods, the TH400 can be built in many combinations. J.W. Performance offers several standard units to choose from.

J.W. Performance Street Lethal TH400 transmissions are ideally suited for your pro-street or pro-tour application. They are assembled with quality performance clutches and steels to ensure longevity and multiple valve body choices are available to give you the options you need. Choose the one preferred for your project.