Here's a link to more photos of the sliders, which, by the way, are now slightly bent after a recent off-road trip! I drove up onto a 18"-wide log (parallel to direction of travel), which rolled out as I drove forward. The sliders came down hard on the log. As a result, the mounting brackets are bent about 1/4" (but the box steel is not).

Haven't investigated the extent of the damage yet, but it's not really noticeable unless you crawl under the truck and look at the mounts.

Photos of the sliders when they were new are here:
http://groups.msn.com/xplorx4/rocksliderz.msnw

My 97 Pathfinder