Bill
These are OE wheels and I never checked to see if the lug holes were elongated or enlarged. When they balance the wheel would a problem like you describe not show up? I can't recall how they balanced them, with the wheel centre hole on the balancing mandrel or if they actually used a 'finger-like' attachment. I know that whichever way they did it the set up balanced nicely.
Bill


1949 Chevy 1/2-Ton
"Sedgewick"
In the Gallery
1989 Caprice