drobb
Adventurer
@soonenough is correct, it's Unistrut with 3/4" crossbars and expanded steel mesh that goes 3/4 length. I welded two tabs onto the front of the rack and used the bolts that came with the light bar to fasten it. You can faintly see two rubber "feet" which are threaded into the front bar of the rack with stainless hardware. They support/displace the weight of the light bar and rack front onto the roof. Thanks for the kind words! I've been having a lot of fun building the armor for my runner. Feel free to check out my build thread on T4R.org! It has a few more photos. http://www.toyota-4runner.org/3rd-gen-t4rs/123007-dtc81s-99-sr5-build-thread.html
Thanks for the info.......nice build also!!!