Makes me rethink buying the US Cartool stuff. I have the machines needed to make my own fillers. Have pan/box brake, bead roller, english wheel, welders etc. Was going to be lazy and use someone else's stuff. The only issue that will take a little thinking is re doing the trunk hinge bracket attachments. Should be able to pull it off. If not, its time to donate my plumbing to some chick who has a desire to urinate standing up! I will use their spring relocation stuff though. I had planned on moving the springs in 3/4" per side by stuffing the spring hangers up against the frame rails. This is supposed to give you enough room for 315's. I'm figuring that if I move the springs inline, I can run at least a 335-345 profile. We shall see. You renew my quest to do it my dam self.