I would say that yes, you are going to have rubbing with 4" BS. Just comparing to my setup. I added Cragar Black D's (same basic wheel as the Soft 8's, just a different shaped hole) a while back to my unlifted KJ. I went with 15x7 with 4" BS running 235/75R15. My combination is .4 inches narrower tire and .62 inches smaller diameter than your proposed setup. I had already pounded the pinch weld, so not sure if that would have rubbed. But I did rub front fenders at full lock. Especially when i would exit my driveway in reverse and the suspension would flex a little. I also had the rear tires bump the fender flares a couple of times entering and exiting parking lots. A 3-ring clevis lift fixed almost all of the front rubbing, but the rear still rubbed the fender flares. Daystar 2.5" lift fixed it all for me for good. Overall, I am glad I went with the 4" BS. I like the wider stance, and even though I hadn't planned to lift, I love it even more now that it's done.
Since you are going to have wider and taller tires than mine, I am sure you will see a little more rubbing than I did at stock height. I would suggest 4.5" BS. That will give you a lot less rubbing. Or just spring for the extra $160 and get a Daystar lift too.
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2007 Light Khaki 4x2 Sport
- Debadged - LTT CAI with Amsoil Filter - JVC HD Radio - Infinity BassLink
- Iggee Seat Covers - Black Moabs - 265/75-16 Cooper Discoverer ATP - 4.10's
- DIY Franky sitting at 23.75" - Al's 4.5 UCAs - Trimmed F&R Bumpers
- Removed Rear Sway Bar - Removed Rear Vibration Damper
- 75k miles so far...
