Kevin Wood, If the trans works fine in low and reverse, your problem isn't the torque converter or the switch pitch function. Usually 400s either go bad right away or last 150,000 + miles, but a powerful 455 might change that.
I'm not going to predict exactly what is wrong, but its almost certain you'll have to take it apart & then the problem will be obvious. There are a couple flat thrust washers up front. They can't be reversed, but make sure they are brass and not plastic. In some situations (like a low gear set) even brass isn't enough. I have had one trans machined to allow a Torrington instead of a washer. I am wondering how the overdrive affects the end play inside the trans. Did you have to put in a different output shaft? Did the end plays check out after the conversion? Bruce Roe 24 Apr 2006 "Kevin D. Wood" <[EMAIL PROTECTED]> writes: > > I just went out and drove the car again around the block. > The car has cooled for over two hours. No change in the > status of the transmission. I was wrong though... First > gear works fine, second gear starts to work, > but slips considerably. No sign of third gear at all. > > I disconnected the wiring to the transmission, thinking > perhaps the trans thought it was in passing gear all the > time. No change. > Reverse works fine. When I shift the tranny into gear > in forward or reverse, switch pitch off, I get a very firm > gear engagement just like I always > have. I'm stumped. > > Does it sound like I've blown the thing? > > Kevin Wood
