Yes I have replaced 2 quarter panels on a 70 duster both sides on my car.First where did you get your quarter panels from did you get them from year one?If you do replace the quarter panel on your car you have to cut the turn signal out of the old one and put it on the new one.If you want to keep the 70 turn signal.My panel was about 2 inches above the body line.But when you cut it out it will be tack welded to the trunk extension,so better use a spot weld cutter or a 3/16 drill bit.I flanged mine on my car,I just think it is stronger.If you still need so pics I can take some off my car and put them up.I have one side that I have not filled yet.Hope this was some help to you.Does any body know what line on the body to cut for a quarter panel skin on a 70 duster? please show some pictures if u replaced a quarter panel on this style of A body
Here is where I had to cut to get the rust out. one side i butt welded. (turned out ok) The other side I had a flange (turned out really good)