Can anyone tell me if I need a vacuum modulator on my new T400. I bought a TCI T400 and the general instructions state that you need to make sure to install a modulator if your tranny needs one. I know my old T400 had one in it. Should I re-install it on this one. This is a fully race prepped reverse manual valve body transmission. Its installed and I'd like to go wheelin, but I don't want to bugger up my new tranny. I can't get a hold of TCI until tommorow.