Interesting....I just took my 2013 Rubi out for the first time, really crawling, this weekend. Had done some tough roads before, but not crawled. Just put on 35" tires and a 2.5" lift, and on this trip I had a frustrating issue. Several times, when I needed to adjust my track going into or through a difficult spot, I simply could not turn my steering wheel either way. It felt as if the pump had given up. I had to back up a little or pull forward a little and it would suddenly work again. No rocks against the wheels to jam them. I had about 18psi in tires. Any hints of what this might be? Nothing is bent.