im in the process of buying a 49 chevy 1-ton with a factory holmes wrecker bed and i have a question?the truck is now setting on the factory 18inch dual wheels in the back but on the front it has the 17inch wheels and hub cabs like what would be on a pick up.im wanting to put the matching dual style wheel on the front and i was wanting to know what size and what i can get them off of ..here a link to a truck i found in the gallery here that has what i think i need .it may just be me but is the front wheels smaller than the rears 1 ton example is there anything later model that i can use the front and reaes from that would be tubeless? thanks in advance for your help....