Chip, I just tried out the 52 after topping off the fluids, did not have to drive it down the street, just had to back up and go forward a little and could tell that I need to undo everyting again,the truck will move the trouble tells me something is about to come undone,we had a cold front come in so it may be a few more days before I go into it, man,it drove and sounded good for 6 of the 8 miles. thanks for all of your in-put,I may start searching for the best match for changing the rear end, transmission out,etc.later.....Fred