Back in the day, when stud-pilot (or “Budd”) wheels ruled the disc wheel world, maintenance professionals dreamed of a system without the inherent limitations of ball seats and inner/outer cap nuts.

Attaching wheels to a truck hub is serious business. Yet it's not uncommon to see some big bruiser of a mechanic, one foot against the bottom of the tire, whaling away with a 1-inch-drive impact gun ...