for the accessory belt on our trucks? Or the length. My truck is making a nasty tap and it's coming from the front, so I'm thinking it's the AC clutch, a bad idler, or a belt. The belt is worn and 33000 miles old and stretched, so hoping thats it.

I figure it's that or a chain tensioner....If I've gotta pull the valve covers I can guarantee stock isn't going back in there

Gonna pick up a stethascope(sp?) from autozone tomorrow and a belt and see if I can find anything.