This helped me a bunch. This was the reason I singed up, so I could get an exploded parts view. I appreciate your help.
You may also like the following webpage. It helped me to figure out many different parts numbers. The funny thing is I now know my truck is a complete Frankenstein of parts spanning from the early 70's all the way to 87. I am not helping either as I am also modifying and installing parts that work and look better.
http://www.gmpartswiki.com/
This webpage is great because you can find out if your parts numbers were discontinued and what was the replacement number. Then the pages are out of the parts and illustration catalogs that you can download off the above link.
This website helped me to find out my 1987 diesel truck, that now has a 1975 350, sitting on a 1978 frame with a 12 bolt rear end out of some other vehicle (still searching).
I also used the website to cleanup my engine bay. I had wires going to parts that were not being used (both mechanical and electrical). I would take a photo, search the part number, figure out what system it was from and then repair or remove. I cleaned out a lot of useless crap left by the previous truck butcher (slang for owner).
Most of the time I was correct but it makes you a lot more confident when you clearly identify everything prior to removing and altering.
Happy fixing, sometimes frustrating but ultimately satisfying.