07-23-2019, 07:17 AM
Join Date: Jun 2012
Location: Central Kentucky, USA
Those wheels work out to a 5.5" backspace.
Stock is 6.1" backspace (+44.45mm offset).
So that sticks you out 0.6" right off the bat.
Then you add another 1.5" because the wheel is a 9.0" wide vs. 7.5" for stock.
So now you're sticking out 2.1" farther.
Then your new tire is 40mm wider, so that puts 20mm of it on the outboard side. 20mm is roughly 0.8".
So now you're sticking out 2.9" farther.
So basically, if you take a tape measure, butt it up against the outer sidewall of your tire, and add 3 full inches, that'll show you where the new tire sidewall will sit on that new wheel.
I think you're going to find that 3" is actually quite a bit, and you'll have a lot of tread outside the fenders.
On the inboard side, you're subtracting 0.6" for the new backspace, but you're adding 0.8" for the new tire width, so you'll be around 0.2" closer to the suspension components. However, diameter comes into play also. So, you'll just have to mount them up and see how they work out.
Current Jeep: 2020 JT Sport S, Firecracker Red, 8-speed, 3.6L, 0.75" RC level, 35" Patagonia M/T, AO Lonestar wheels, MAX TOW, M.O.R.E. dead pedal, Supernova V.4 bulbs