i just recently got a 1983 yota 4x4 with no back cab or glass, the person i got it off of didnt seem to know alot about it and i thought it was just a custom job but now that i look at more pictures it seems like its been professionaly done, heres a pic for now that maybe someone can tell from, its dark here now tomorow i will get some more pics of the inner cab

 

cant tell if it a trailblazer
but that is a nice lookin first gen

 

possible that it is a Trailblazer. Trailblazers used a steel bed when converted by Griffin.