Mine is a Ford KP 60. The front is tight but not too bad, I may need to limit the steering an inch or so. The rear 14bolt is where I need a touch more room. I rub my airshocks on the side walls during articulation. I have some longer brackets to move the top of the shock in a few inches. Should be enough to clear.you have a chev dana 60 right? I have a set of dually hubs that would space the front out? We could work out some sort of trade for your single wheel hubs? I have been looking for a set of SRW hubs.
Have you cycled the suspension with your new tires on? Maybe they'll clear and you can save yourself some work?
Can you helicoil the stud holes?Well you gotta love pulling apart a rig that someone else built. My Ford KP 60..... has Chevy knuckles. After I installed the new tires I was checking clearances and noticed my driver side high steer arm was loose because 3 of the stud holes are stripped. Picked up a Ford knuckle and pulled it apart to find the modification lol. Now I need to source a Chevy knuckle