I believe we had this talk in our many travels in my truck Mr.M.The tire is a F78-14 like I told you last year, when you asked if it was a E, we both said that was a Chevy size an E. Next I am going to go and look at the piece of crap out in my scrap bin that I believe if off a Mustang and has a tire on it a 78-14 I believe and will write down all the stampings and stuff. Ya I have not got my Camera fixed yet to take a picture of these rims. The Mopar spare rims you and I bought years ago are 5.5s. I still need to drive to your house and have all those Spare tires and rims changed around, but who needs a spare tire when you are running 14x32s and 3 inch wide skinnys on the front. Dont have to worry about Disc brakes either, Challenger does have that luxury, four wheel drums. I will one day have to try this Orange rim that I believe is an AMC Rim on a Disc Brake E Body to see if it will go over the caliper.