Well, ive solved the problem. The Star Bold Adjuster threads into its nut, backwards. As in, lefty-tighty, Righty-Loosey. Why the hell would they make it this way? I know not. But i laid under my truck for an hour trying to figure this damn thing out, turns out, I was turning the bold the wrong way, and it was just rotating in place, with its tip held in place by the bolt.
Also, a replacement did not come in the set of replacement parts that i picked up from pep boys.
But i have it in, and the brakes are working fine, so you live and you learn.