Without lockers and just 33s on my 80, the rubicon was totally exhausting, but doable. Just dont do it when there is a heep big run, a lot of people get pissed now if you dont get things right the first try. I was literally sore from driving. But its doable, and I only blew out a shock and dented the rear quarter panel and broke a turn signal lens. Count on being a lot slower and your spotter becomes the most important thing ever in your life. Without my buddy Taylor, I would have never made it up Cadillac hill. I would still be out there cooking bacon.