Sorry for being gone so long.
I don't think raising the ride height is going to be the answer because that only changes the at-rest height. The suspension will still travel up and down over bumps in the road. You're either going to have to put on tires that are closer to what the truck was designed for, or you might check if they only rub when the steering is turned nearly fully left or right. You may be able to fashion some stops to reduce how far the wheels can be turned. Look at how they did it on the back of the lower control arms on the older full-size "B" vans from the mid '90s.
Keep in mind that the over-size tires alone can get you in trouble with a shrewd lawyer or insurance investigator, and modifying how far you can turn the steering wheel is another modification they love to find. They WILL convince a jury that you were partially at fault for the crash caused by the other guy who ran the red light, and they will be right. Anything you modify will adversely affect handling, steering response, and braking and will make you less able to avoid the crash. You and I know that may not be true but they will have a strong argument. Those three characteristics are carefully matched when they are designed in and you can't improve on one without degrading another, otherwise the manufacturer would have done it. With all the ridiculous lawsuits today and the sleazy lawyers willing to take them for a quick buck, you might want to consider going back to the original tire size, or at least something closer to what should be on the truck.
Monday, November 19th, 2012 AT 2:22 AM