So I just had a new set of 17x8.5 +25mm Icon Thrusts installed along with 285/70r17 BFG KO2 Load Range C 113/116S tires. Currently I just have the 1” factory spacer/level for suspension work.
I expected some rub, but before I went to molding/trimming I wanted to make sure this is t something I could improve with alignment. Thought? And any “preferred” methods of limiting forward scrubbing apart from getting a new bumper?
And some straight on shots of the side. The rubbing seems to occur on an incline and near full lock. I don’t think the back of the tire is rubbing, but it is VERY close.
I had a similar set up to yours with +25 equivalent offset wheels and 285/70r17s and mine rarely rubbed on the front. All I did in the front wheel well was the removal of the mud guards. I rubbed a bit in the front from time to time in reverse but not enough to do anything about it. I guess alignment plays a role here.
I now have your same wheels (in black) with 35" tires. In the front wheel well I had to mold the rear with a heat gun and move the front by relocating the screws.
You have a lot of caster in there and that’ll increase rubbing in front of the front wheel well. If you are hitting at the front much more than the back you could put the caster into a more neutral place and gain a little front clearance.
End of day +25s with your tire diameter need massaging to make work.
I’ve noticed that my truck is pulling right, particularly under acceleration. These are my alignment specs, I’m thinking to correct the pull, I’m thinking they should drop the caster on left right by ~0.4 to create a cross-caster situation. Am I thinking about this correctly or should I be looking at the camber?
You have a lot of caster in there and that’ll increase rubbing in front of the front wheel well. If you are hitting at the front much more than the back you could put the caster into a more neutral place and gain a little front clearance.
End of day +25s with your tire diameter need massaging to make work.
Thanks! I’ve massaged the front to clear and the rears are so incredibly close I honestly can tell if they’re touching, but there doesn’t appear to be any witness marks. See my comment above however about the pull I’ve gotten now.
It’s pretty easy to push that front plastic fender liner forward a good few inches. The rear of the fenderwell will probably involve a heat gun and removing the mudflaps.
