Well, I don't know where it came from but a fellow bolter in Mi. sent me a pumpkin that is 3.90.... .he says it came out of a 56 or 57 pickup. I do not know but I did look at the ring gears ect when I put a new pinion seal in it.
....I guess I've been told wrong but I've always "heard" there were 3.90's in a lot of the pickups and that it was the later years like the 60's that had even a higher gear???
I'm not claiming or dis-claiming anything here. Just adding to the confusion!!!
