I have run a 15 X 8" rim with 4" backspacing with a 235/70/15 tire on my 54-3100 with stock tie rod ends. Had 5/8-3/4" clearance from ends.
Wound up with the same tire on a 15 X 7 w/4" BS rim and upgraded tie rod ends. Noted 1" clearance. Tire is centered in wheel well and have noted no interference with tie rods ends. Hope this helps.
