I found the GM part# for the 2 bolts that hold the power steering pump on my Daughter's 95' Formula Firebird. Damn tensioner went and allowed the belt to whip around until it broke both bolts clean off. The parts diagram showed everything, and when I looked up the item#, it even gave the dimensions so it could be matched up! The CompNine site was just an accidental discovery trying to find out what kind of bolts I needed.