Found the manufacturer stamp today on my stock steel dually rims -- Fumagalli Wheel, Brazil. I can not find any information on these yet, other than what I know or can read on the rim. Any body have any specs for these? they are stock 16x6 with seven handholes, 8 on 6.5" bolt pattern. My vernier calipers are broken -- what is supposed to be the hub pilot size in inches??