The Trailblazer rear has an odd bolt pattern, it's not the standard 6 on 5 1/2". I think it's 6 on 4 3/4". You would have difficulty in matching wheels for that one as currently all the wheels for it are a high offset design that would rub in the fenderwells.
A Dana 60 from a Dodge van would fit in a 3/4-1 ton AD with no wheel problems, I know of a truck that is set up with one of these. I would think that a rear from a 1 ton G series van would fit as well. You might be able to use the front suspension crossmember as well.
