I think all the military blazers had diesels. There's not a huge difference between them and production blazer. Different electrical system, different lighting options, and various other little things. I think they all had th400's and most had 208 cases. I can't remember for squat, but a year or so ago I asked if anyone knew the exact differences between the military and production versions, and there weren't really many. I'd buy one 'cause the body's seem to be almost rust free on any I've seen up close...
Chulisohombre, were they Military Humvees? I had thought it was illegal to purchase a military version, or it had to be destroyed after you purchased it. I know there were 50 sold before that was put into effect a couple years ago. I've never heard of a military Hummer being auctioned off aside from that, and I've been watching and drooling for one for years!
There's a website that lists all the current military stock getting set to be auctioned off. I have it saved on my laptop, not handy right now!