LOD Signature Series have the perfect setup for excellent protection and a functional step. The mounts are very stout and can be bolted to the frame. I didnt want to do a bunch of drilling so I bolted the few factory locations and then welded the rest to the frame.

 

I second this. I love mine and they absolutely have taken the weight of my JKU on rocks. I priced all the competitors and these guys won for me.

 

Another bonus of the frame mounted White-Knuckles is no need to also buy rocker armor. The pinch seam is pretty well hidden, if it bothers you (doesn't really bother me), and if you manage to damage a rocker with these installed, in pretty sure that means you totaled the Jeep in the process, so you will be having bigger issues than a wrinkled rocker.

They do, or at least they used to, make a little strip of metal to cover the pinch seam, but I never saw a need for that.

 

Exactly this. I can't see the benefit of rocker armor IF you have a solid frame mounted set of sliders like this. Pinch-seam mounted ones, I can understand, but like tjkamp said, you'd really need to mess up to damage the lower part of your Jeep with these on.