Thanks, but I was being facetious (I've known junkyardhero for a long time)... sorry. I already did all of that math, and I decided that neither metric option was close enough for the stiff poly bushings in the Bilsteins (too small = I could never force it on given lack of leverage up there behind the axle; too large = too sloppy). Besides, I don't have any metric drill bits right now and I don't see any reason to start collecting them. I ordered an 11/16 from the local Ace Hardware for pick up Thursday.