Hi Justin
Need more pics , of the rear tub . The two GMH body data plates are normally on the pass side firewall , engine side . Gross weight says it is over 2 old tons on that plate . It could be a 1 tonner with 123" wheelbase . What size are the wheels ?
I need a GMH cab for my 1940 ute project . That cab might do

I also need info on the wooden framed tub GMH made , mine is mostly gone
Mike