trucks aremainly new us express trucks now. there is a few older Arnold trucks but most f them are in lease purchase deals by now. the usx trucks are freightliner columbias or centuries. I forget which is which. fairly new with cat motors ad autoshift transmissions. trailers are mostly decent but there never seems to be enough of them to go around.
Oh and be prepared to pull 57' trailers, arnold has a bunch of them but they are only leagal in TX and the middle of the country