yeap tank measurements make it around 30 gallons, problem is only 28" between frame most tanks I've seen are 30 plus wide, going to clean everything up, blow out the rear lines and try it,nothing to lose, rear tank is easier to fill on a flat bed anyways, got a hole cut in bed now to fill side tank,got to fab up some ss tube to get fill to the sides, po had a piece of exhaust tube to rear tank we may be able to re-use.