That roller DOES NOT WORK on A-bodies. They only work on cheap Japanese metal cars. Our car metal is too thick and double thickness where it rubs. Don't waste your time or money on this item!
The Eastwood roller? It works fine on A-bodies. I used it on the front fenders of my Duster as I said earlier. Not only was I able to roll the lip but it was plenty strong enough to push my fenders a bit further out as well for more clearance. The rear quarters take some more prep work for sure, but it’s not a waste of time or money if you know how to use the tool.