Called the Willwood tech dept.; they were of "Big Fat ZERO" help.
"Dude, (my injection for the drone looking at the screen and not thinking)" "all our studs are 1/2", they're better than 7/16"" they had nothing and no clue.
Why bother offering 5X4" without at least an option for 7/16 studs (fire the engineer!).
Looks like my only option id to ream the existing wheels to fit the 1/2" mag lugs.
Has anyone done this? Any adivice