Today, I received the gear set I ordered and immediately kicked myself in the butt. I took the PO of my '52 3100 at his word when he told me the tranny was a '54. After all, I new the rear end was a '54 after having done the 3.55 conversion. Here's the butt kicking part. The tranny is a '51. AFTER looking at the gear set I decided to check the code stamped on the tranny case. B191 (February '51). The gear set was the same from 48-53 but changed in '54. Aaargh! Time to resume the search. There is a junkyard near here that has an old 3100 that still had the SM420 in it the last time I was there. I guess I'll be going there this weekend.
