I believe with the short amount of time repros have existed that those would not have aged that much yet if they were aftermarket.I`d say they petty much have to be OEM.I think we need a new term,though:O.N.O.S...as in old new old stock or M.N.O.S...as in mint new old stock.I guess "Old Stock" and "New Old Stock" would get it.There are old factory parts that have never seen use that aren`t exactly "new" condition these days.Don`t get me wrong.I jump all over that tarnished old stock.I just bought a Stepside fender that looked like those bedsides.Wasn`t cheap,either.