Hopefully Max can rain down some of his awsome wisdom for me When drilling your hubs for a new bolt pattern, how much smaller should your new stud holes be than the knurl size of the stud you are using?
From what i have read they say you want the hole to be .007 to .010 smaller than the knurl of the stud. So if i have a knurl of .625 i want the hole to be between .618 and .615 ? The only drill bit i see that is close is a 15.5mm which is .610. Is that going to be too tight of a hole for the stud to press into? Its going into cast if that will make any difference.
I use reamers that have .002" increments , i drill it with a 15mm, then ream it to the exact size needed. make sure the holes are flat and true, if there off a bit, it will suck. Taylor