Don't know if you've given consideration to things like seeing out of the rear, or dragging the tire down an obstacle. Or weather you might want to change wheel patterns, or rim width from what your currently running. If you haven't, I suggest you do. It's easy to build a plate with two patterns now, versus cut off old studs latter, increase the size of the mount, and redrill for new lugs. Or discover dropping your 33 or 35" tire down so you can see over it, only to find it's now a departure angle limiting factor. Just a suggestion. I recently changed from 5 on 4.5 to 5 on 5.5, and had to make time consuming mods that would not have been necessary had I, or my bumper/tire carrier builder thought ahead.