I have a question for all you guys out there having tranny problems. Why is it that when you had to replace your 46RE you didn't just swap in a built 47RE. I was under the impression that it would be a straight bolt in, but am unsure. It seems that you would have the added strength of a heavier duty transmission and I really haven't seen too many complaints posted on the board regarding the 47RE's. Just curious as I have a 46RE myself and would like to know that if I do start having problems that this is a viable option.