"Quartering" is not for the casual hobbyist. There are a number of ways to do it, but you cannot successfully do it on the kitchen table.
My method is described in an early '90s issue of OGR (no, I don't remember which one). Joe Foehrkolb had a different scheme. Never tried the NWSL unit -
You need at a minimum an arbor press or substantial cast iron drill press and a special steel fixture. Cheaper to let an expert do it.
Unless a Sunset driver is loose on its axle, it should not be out of quarter.