So, finally got to take the Jeep out on some mild trails for the first time since going to 37's. Found a good size rock to get the front wheels on and when the right front tire is fully stuffed and the wheel is turned to the left lock, I get some rubbing on the back of the grill. I do not get this on the left side, although I may not have had it up as high as the right due to the approach angle being different for the left side. I am wondering if this is possibly due to the axle not being centered under the frame left to right with the track bar or if I need to adjust the front control arms to re-center the axle front to back. I haven't had the chance to get under the Jeep to measure and see if the track bar has the axle centered under the Jeep yet. I am going to try to do that this weekend. Currently running a Metalcloak 3.5" Game Changer with all MC tie rod, drag link. Also have 3" of MC adjustable bump stop installed and using the MC durospring upper bump stops.

 

A couple of pics on flat ground for reference:

 

Yeah, your first step is to make sure the axle is centered. Backspacing of the wheels plays a big part of what you're dealing with as well. Less backspacing will actually help your cause as the tire/wheel won't "swing out and around" as much. Hopefully a quick adjustment on the trackbar will fix your problem.

 

It might be just the angle of the picture, but your front axle looks to be too far forward in that picture. What length did you set the lower control arms to relative to stock?

 

Trim, add bump, increase wheel back spacing (should be at 3.5") , drag link flip to flatten the track bar and reduce the push and pull of the axle during articulation. Or leave it and let it rub since you will rarely be in that position.

 

The jeep is looking great! I have a very similar setup to yours with 3.5" RK springs and full MC arms. My first set of 37s were the same 12.5 wide TGs and I mounted on 4.5” BS wheels. At that time I don’t recall any rubbing on the grill, though I did have some contact with my aftermarket inner fender liners (note I have a DL flip and run 3” bumpstops up front due to the flip and believe I had a couple washers in my steering stops). IDK if you have 4.5” or 3.5” BS Dirty Life wheels there (I tried to buy that same wheel in a 3.5” BS when I was replacing wheels so I know that was an option at least). As Dirtman noted, with 37s ideally you have 3.5” BS. With my old 4.5” BS wheels I ran some adapters so I wasn’t rubbing anywhere. I eventually bought a set of 3.5” BS wheels.

 

I think I will go ahead and install the MC drag link flip kit that I purchased next time I get home. I already have 3" of bump stop installed anyway and maybe I will notice an improvement going over bumps. I'll have to order a 7/8" reamer now for that.

Wheels are 3.5" backspacing.

 

Thanks!

They are 3.5" backspacing. My old wheels were 5.2" and I was running 1.5" spacers with them and wanted to get rid of the spacers when I bought new wheels and tires. It's just easier not having to remove and reinstall spacers if I ever have to change brake rotors or pull an axle shaft.