TCI 727 super street leaker NIGHTMARE!

Unfortunately I have heard of problems with TCI more than I can shake a stick at. That's why so many guys say TCI stands for "Turns to Crap Instantly".

If it was coming out of the hole behind the tin cover that is the vent so for some reason it's building up pressure internally. Try checking your trans. cooler and lines for a restriction. that's the only thing off the top of my head that I can think of that'll make it blow fluid out of the vent. If there is no vent problem check for a crack in the case or front pump.

Is the driveshaft front yoke for a 727 or a A518 (over drive trans.)? If it's a Mopar Perf. yoke and was advertised as a A518/727 yoke that may be your problem. They really only fit a A518 good but can be pounded in place in a 727. My guess is they must have changed the spline angle just slightly because the spline count is the same.