Wow yours must be optioned up because I have never seen a G with all that kit on it and I've never seen a solenoid 4wd on a pre 87' either especially on a G.
Also no LSD? Are you sure? I've never seen a diesel 60 that isn't LSD, my 83' G was LSD and my mate's pov pack was LSD also.
Yep, positive. I've spent many an hour under there, had hubs off on both sides, replaced drum brakes, diff oil change 2x, sway bar bushes, etc...
I think there's a stamp on the diff that says 'LSD', if it has one. If only mine did... not that I go off road, but it's nice to have.