I've got a 93 s10-Blazer with the vortec 4.3.... My Idler pulley bit the dust and ate up the bolt that holds it on, and then my truck ate the bolt when i was replacing the pulley.... consequently I have no reference to go by, and for the life of me I can't figure out what size it is.
Anybody have any random knowledge of what size it would be, or an idea where i could find out?
thanks,
lane