I got an xj with a three in a half inch suspension lift coil springs and leaves and I'd like to get another inch out of it so I'm going to add a 1 inch coil spacer to front and a 1 inch shackle to the rear if I take 2 inches off fenders along with my 1 inch extra lift with that allow me to go from 31 10.5 to 33. 10.5 without having to replace the bump stops I'd like to know this info before I do the spacers because I'd like to do the bump stops at the same time instead of finding out the hard way and having a tore up fender along with having to do all the work over again of taking out the Coil Springs thanks in advance for any and all info its very greatly appreciated