Custom Series D-19 30 Deluxe & Special D-21 13 Deluxe Series D-19 30 Kingsway D-20 13 Medium & Heavy Duty Truck 23 Mil. WC 1/2 ton 13 Mil. WC 3/4 ton 14 Pickup & Light-Duty Truck 24 WC 24 WD15 19 WD20 19 WD21 19