Where did you buy your rear quarter skins from? I bought one for my 73 cuda from Goodmark, which was not stamped from the orignal die. My body guy said he had to fabricate some bends that were not stamped. It took him an additional 2 hours to re-create the correct bends and curves before he could attach it. I also bought a rear valance from them, which fit perfect, of course it was from the original die.