With these being a body mounted "slider" they mount in the exact same area as our trim kit. I'd be interested to see how much abuse these things can take taking a few things into consideration.
First being that they are body mounted. We make body sliders for the old style jeeps, but the 3/16" plate that braces the body(rather than 1/8") spans at least 6" of the the body on both the side and bottom.
Second the idea of the slider plate being fastened to the body with pop rivets is a bit unsettling personally. I would imagine they have heavier fasteners in there somewhere but the pop rivets cant provide much in the department of strength. One might argue that many air crafts are riveted together, but in that case solid rivets are used in large quantities.
I would think that these would be a decent compromise for light duty use, but I have seen what I have done to 3/16 wall tube on frame mounted sliders in the rocks and would not feel the least bit of comfortable using these sliders to protect my rig in the same scenario. I play hard though, reference my avatar.