Racetech quick release steering wheel coupling. A light weight quick release steering wheel boss. The boss is designed to fit to steering wheels with a solid center.
1/4 inch holes for bolting to the steering wheel. The hardened steel splined slug has to be welded to the steering column. The diameter of the splined section of the slug is 19.00mm and has 15 splines plus a master spline to enable quick and secure reconnection of the wheel to the column