I ran into the idler pulley/ bolt unavailability here a few years ago on my 1994 5.7 big Blazer. What a PITA. I jury rigged something, but I was in total disbelief that they weren't selling the bolts
Yeah there idiots at the parts store though. I would of rigged 2 washers and a bolt and slide it through to get me home but apparently they dont sell "bolts" even though I see them on the spinner thingy lol