73-74 Chargers are a completely different car than a 71 or a 72. Fenders,doors,1/4's,frame rails,aprons,rad support,front suspension,rear suspension,gas tanks,bumpers and brackets etc are totally different.The 73-74 Chargers body is an exaggerated,sculpted variation of the 71-72 with a lot of differences in the body lines and wheel openings etc