4l60e trans shift prob.HELP!plz
ok sooo it wont shift under wot.....it just slams the limiter it sometimes shifts perfect but other times it just slams the limiter. i just got the car back from having it rebuilt..it has a yank 3500 stall in it and also while it was in i had them put in a strange dana60 rearend in... it has been tuned and the tranny and verter was in before this rebuild it was more like somethin broke and i was going in for warrenty work.the only thing difrent is the new rearend. any ideas?? im callin them tommorw. it shifts fine at 75% throttle just when its wide open..and it doesent seem to be sliping ither it just pulls to the limiter and bangs it....

