hey black dog, I was there that day when that pic as taken.
I have an 85 runner with 35's, lockers, allpro 5" lift only, and no sliders. I was very cautious and worried of my quarters. I kept street psi in my tires to maintain clearance. It took me two attempts over the keeper but made it without a scratch, came within a few inches of hitting. I found an excellent line that gave me a straight shot over the keeper rather that trying to make my left hand turn as I was going over the two huge rocks. I would I do recommend sliders, just for the piece of mind.