I have the same set up. No rubbing under normal circumstances. When I still had the OEM bumper, I mounted the tire, turned the wheel and cut until the tires didn't rub. The ARB has no issues. Once I cut everything down, I only had rubbing at full steering turn and that's on the sway bar.
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2006 CRD
http://www.UtahPowderCoatings.com/ http://www.gorecon.com/ I'm kind of a big deal.
RL rear bumper, ARB front bumper, Mile Marker winch, Power Tank, Skids by Mopar & Skid Row, RL Super Skink Sliders, 235/85R16 MTR, Air Flow Snorkel, DTT, 4.10 gears, Frankenlift II, Katskin leather, JL Audio stereo, Rosen video.