[JayR]

Have now heard from a number of sources that the TH400 showed up in factory installs on numerous SB cars. Seems if a car had a 3 speed automatic, the factory installed whatever they had. If there was shortage of TH350's, they put in TH400's. Apparently, many SS350's have TH400's and even some 307 V/8 cars have them. Few people in those days probably knew the difference anyway. As long as your 3 speed automatic transmission worked reliably nobody really cared what it was.

Bob