18x9.5 +12

72bluNblu said
Good grief!

I can't believe that fits that well, even with the corners of the fender opening cut back. You're sure that's a +12?

The top of the fender is a piece of cake. You can roll that lip and use the roller to push the fender out a good 1/2" without any trouble. Just need one of these bad boys
View attachment 1715683672
Summit Racing SUM-900790 Summit Racing® Fender Rollers | Summit Racing

Yes it’s a +12, are the tops of the fender arches different on your Demon/Dart fenders than my regular Duster fenders?
That’s the exact roller I borrowed, I played around with it for a few minutes. Seems to work a lot better than a hammer or the “baseball bat” method.