Comments: No trimming. I got the 4" lift from JBG it is the delux super lift kit. They will rub if you lock the wheel all the way to the left or right AND you are rolling AND you hit a bump. But this rairly happens.I searched the world over looks at tire sizes and lifts to see what would fit. I wanted my fender wells filled up but with no rubbing. I got just what I wanted. These tire are quite on the highway and great off road. I removed the blocks ont he rear and replaced them with shackle flip kit. Hefty Fab works made mine and I love them way better than blocks and cheaper that new springs. Good luck with your project and post pics when you can.