So hubs are generally not universal on either the steering column side or the steering wheel side. Each car or group of cars has a hub that will fir their specific spline. Then each hub is usually one bolt pattern: Momo or Nardi/Personal. Quick releases, locks, and tilts are generally universal on both sides as the mechanics to makes them expensive. Hubs are usually just a single (maybe 2) piece(s) of metal with 3in. of wiring for the horn; pretty easy. The other items need springs, many metal parts, cams, rings, push buttons, etc. to function.