Thank you!
Guys I too thought it was a 47, However I cannot find any 47 stamped, or cast in the case anywhere. And what bothers me is the last two digits in the serial number I did find etched on the case are 46. Any clues or help?
Nate--bought the truck new in 98 it stays in the garage most of the time. Comes out on weekends to pull to the race track only.....
B. G. ---Are the numbers on the bell housing part of the trans? On top maybe where I cannot see them?