Re: 4WD light off.. and no 4WD.
Ahh! Problem solved. Sure enough it was a yanked vacuum hose. There are 2 'nipple' looking plugs on the passanger side sorta close to the distributor. One never had a hose attached, which baffeled me for the longest time.. and the other was attached to a hose vacuum. Ends up that the unattached one is SUPPOSED to be like that. I yanked the other because it didn't seem to be doing anything :P
I just reattached the vacuum supply and wham-o. Thanks for both of those schematics... they definitely helped!
(I was 'hosed' there for awhile...)