I have the LoD front bumper and am about to go with their full width rear bumper. I would call Chris at LoD customer support and ask him to comment on your questions. I'm pretty sure their bumper is as strong as factory or stronger. One of the reasons I am considering their bumper is their hitch feature (and built in lights). Be sure to post here what you find out, I'm curious.
2012 JK Sport, auto, 3.73, Eaton E-Lockers, 3.5 inch AEV lift, Method 17x8.5 Standards, BFG AT LT31570R17s, LOD full width bumpers, SB RC-8 winch, sPod, Yakima Megabasket rack, BBL lightbar.