Shouldn't be a problem, as long as you don't go to wide with them. The 215/75 or 22/75 15s will be fine on the stock wheels, and shouldn't hurt the steering much. You'll want to bump the tire pressures up a bit from what the oe bias tires run, say 32-35 psi. I run 35/41 in mine, steering isn't too bad, though it is rather stiff at very low speeds due to the width.
