My June build 1971 Challenger has the 1971 Inner fender that has no welded in nut. Never seen a 1971 E Body with a 1972 Inner Fender and I have looked at many mid May build E Bodies to the end of production to see what was going on then. My SPD is May 24 but my door stick in June. Cudas with the same or near May 24 SPD have a May Door Sticker. Also Challengers have the three nuts to hold the fenders and Cudas have the studs with near SPDs. The trunk floor on my Challenger has the 1972 Version and the Tach is not the same as my Cuda that has a Nov.5 1970 SPD. Lots of little things were Changed over the last four months of production in 1971 but I have not seen the 1972 Inner on an 1971 E Body.
