Here is my 1984 M1009.
http://spitfire.homelinux.com/~sysop/m1009/ It is basically the civy chevy blazer with a few modifications, 6.2l diesel, blackout lights, 24 volt starter, and a few other small things. It is rated at 3/4 tons. It wieghs 5200 lbs, not sure how close that is to a civy blazer.
-sysop