You can hammer the standing seam flat inside the front wheel well if not already done. Also, for minor rubbing, consider moving the front axle forward 3/4" or so. I did this on my '85 years ago and it helped a great deal with tire rubbing up front. Only my 33x15.50 Swampers rubbed after doing that relocation. This was with stock steering and an adjustable draglink. I just redrilled center holes in the spring perches, one side already had the extra hole, I just duplicated it on the other perch.