did you change the front shocks? I have a similar setup to you and have just left everything stock lengths, I have noticed that with the 33's you run out of travel before the shocks are at their limit, except on the front.

Also the rubbing is most likley from the frame, Mine slightly rubs on the frame at the rear of the tire. Also be carful if you are wheeling with the stock bumper and MTR's mine caught on the front bumper and rolled the corner in, but I think it was because that side of the bumper was already a bit bent.

I am anxiously awaiting my TJM front winch bumper

JG