great exploded diagrams and parts list. dont think you can order tho
http://gmoem.com
Thats a SWEET site for Gm part #'s....thanks
isnt it, not quite following it tho. they can show several version with the same number with some discontinued...bit confusing.
another good one for older trucks/vans (Scaned)
http://www.gmpartswiki.com/getpage?pageid=54649