i dont now how u have the time for all the reply's really appreciate the help, u need to be nominated for poster of the month.. anyway how would a person check for to much load on the thrust caused by the tranny. I know the tq coverters on correct i have small amount of play back and forth play on the converter, iguess next would be to be check line pressures on the cooling lines im not sure supply or return and what pressure specs are supposed to be, small not a local tranny shop gave me an inline check valve for the pressure line because i had drainback in my th400 i guess is a typical problem. They told me to check the dip stick hot should be at full mark, let sit overnight if its above the the full mark it was draining the tq coverter. Could this be a clue to a bad pump tranny etc. Tranny was rebuilt, not saying much i did not witness. Tranny seems to shift ok. How much crank movement is to much 1/8?