Just bought my Trailblazer August 12th, first truck I'll be modifying. Lots of great info on here, itching to get moving on mine. Bone stock as of right now, just working on fixing/replacing what was broken on it when I picked it up, hoping to have it lifted around spring time.
It's an 06 LS, has 101k on it, runs beautifully, and the 4wd works.