I intend to read this thread, and wanted to jump in. I believe this assumption is INCORRECT. It's my working assumption that there are MORE F-marks on earlier jeeps than later ones. There are also more Ford-style variations on parts earlier than later (applying the rule AFTER the introduction of Ford-produced frames and blocks).17thAirborne wrote:Thanks for that link. Got one. Saw an earlier discussion regarding "F" marked bolts with the same result. Not all bolts on VEP are marked.
Keep in mind there are TWO distinct Ford-style bolt heads. 1. The stereotypical "F" and the distinctive "plain head" bolt. Both are correct, both distinguish Ford installation vs any other manufacturer (the myriad of MB used bolts, the BC used by Bantam, the raised dot used by IH, the DPCM(?) used by Dodge etc).
EDIT: THREE Ford style bolts. I forgot about the recessed head bolts found on some seat mounts, t-case pans, and access covers.