You may be able to find some parts that you are looking for on the web-site:http://www://trucksofyesterday.com. I came across this web-site by accident,last night,when scrolling through "classic white trucks.com." They have over 2,000 classified ads posted,parts for sale,as well as parts wanted! a LOT of stovebolts,and parts,parts,parts! I may have a line on a Brown-Lipe 3-speed auxiliary trans. for my '55 2nd-Series 6500! There is a post on the site,where someone has a Stack of EARLY Alcoa 5-hole,(10-bolt),but they look to be 22.5's,not 20's. But you never know. He may have more aluminum wheels in-stock,that are not pictured. It may be worth a try. Hope this helps.
