I had my 4x4x2 box already cut into the frt body mount but if you narrow the D60 then the tires will only turn a little bit to the right b4 the left front hits the body mount and strg box--mine already was with 37"s so I moved it again...then moved the track bar mount then totally cut both both body mounts out...all clears now but took about a hundred up/dn/full left full right articulate with full turns or straight ahead or ...every possible combination of wheel/tire position at all suspension possibilities...floor jacks are about worn out! ..least my shoulder feels like it! 