Differences between 70/71 and 72 Darts

Side lights are dfferent from 70/71 and 72. 70/71 are flush mount for a more clean look, where as 72 and up are mounted on the sheetmetal. The front fender extension is different, and maybe the rear quarter extensions are little different. small difference in the grill, but either will fit the other. But the rear bumper on 71/72 are the same where the 70 is different. so this is a start to your list. If you know what you need just ask if that part interchange. Have fun. So which year do you have?