I have a '69 Dodge L-600 with Dayton rear wheels and 6-lug Budd's on the front.Both are 20" split rims,I'd like to replace them with tubeless or at least one piece rims also,the Accuride link looks promising!Dodgedon,what tires manufacturer) are the 10.00 x20 you are running? Mine are 8.25-20,the only tires I see are Chinese manufactured. ~RT