the oldgirl has 6 lugs .wheelbase falls in line with 3/4ton. don't know if extended w.b. from factory for 1/2 t or not?po seems to know quite a bit about older cars/trucks has a 8000 sq. ft. wharehouse in pa. filled w/vechicles.verifed by transport owner/driver with pic.s. but no one knows everything. by the way po relly good guy .also is looking to let go ofsome of his toys.