a '57 1 ton would have a 5.14 rear, not a highway machine .... might be OK if you want it, but depends entirely on the condition - does it run, drive, stop? is it a "driver" or does it need total restoration? is it fairly solid or a rust bucket? glass good or all fogged/cracked? what are your plans for it, just work it or restore it? think you want it for life or do you expect to make a profit flipping it?
Bill