For my motorcycle I can look up any part down to the screws and gaskets. Even the price.
It shows detailed drawings.
I know this site has a GM parts page but it has no pictures and it just sells the whole part and it used words which don't describe or show me what the part looks like.
Is there such a thing for my 1999 truck?
It would be exactly like what the dealer uses. It would have pictures or diagrams.