don't bother. you're better off making your own fenders than you would modifying a set of off road fenders.My plan is to get some 4wd fiberglass fenders for my bagged 98 Tacoma. But they always come with a 2" rise along with a flare or whatev... So how hard would it be to re-do the rise of it(bring it down) and just put a flat piece in there so that the wheels tuck better? I have never worked with fiberglass but I will have to do this to complete the project. Any ideas?