ok, flame suit is on...here we go...

received some 3" black step bars as a gift, decided to slap em on tonight.
part numbers on box matched the numbers on the trail fx site so i'm hoping i'm just stupid and someone here can point me in the right direction...

front brackets and straps fit a-ok, rear brackets went on fine, then the rear straps dont seem to have a mounting hole under the truck. anyone have any experience with these? a buddy of mine stopped by, had him check to see if i was just having a brain fart, but he had the same problem, haha. this is driving me bonkers so if anyone has some input, it would be greatly appreciated

2001 supercrew btw