Xtra Wide Mud Gapplers???
There are a couple of people here who have the mud grapplers in 15.5 with 9" wide rims that dont have any problems. I wouldent get to wrapped up with the specification from Nitto. Someone may be able to provide some more feedback from a scientfic standard.
you just need to get the right size wheel with the right amount of backspacing and you should be able to do it. optimally, i would think that a 9"-10" wide wheel would be something you want and with maybe about 3.5" of back spacing.


