[Rain city 503]

Hey im hoping someone has seen or knows anything about this truck,my title cassifies it as VA which is a van im wondering if this was a factory option of sorts to have a dually one ton or if its completley custom this thing has straite 6 witj manual tran on the floor, i paid i think 1500 for it a few years back and drove it out of a field. I havnt done anything with it in a couple years. Should I put work in on it if its a rare find. Or is it a waste of time an not worth ****.. any info would be appreciated.