Cutting/folding rear fender flange

The flange is pretty stout because of its multiple layers and spot welds. On my Duster I rolled the flange flat, but, I did it in a multiple step process. I just cut it even with the spot welds the first time around, nothing on the tire side of the spot welds should really effect strength, it’s just extra as long as the spot welds are intact. That alone bought almost a 1/2” on my Duster, but that probably varies a bit.

When I committed to rolling them when I did my reverse tub the first thing I did was add a 3/16” diameter rod to end up with a round edge. Then I started the roll with a hammer and dolly, and some work with a flat jaw set of vice grips. Once I had the angle established I used a fender roller to finish it. I have pictures of the whole process in post #333 in my build thread, this should be the post
My "new" '74 Duster- or why I need a project like a hole in the head