thanks guys it looks like what you found is the same that I found. Though there seems to be a 43.60 and a 43.79.The 43.60 is supposedly the big block one though the 340 43.79 might fit also. But its not easy to find one. I know I can't use the current one I have for the 904 trans. Guess I could sell that one hopefully to offset the cost of the one I need.Thanks