This adapter will allow you to mount your 6-bolt MOMO or other 6x70mm pattern steering wheel to the steering column in many Porsche models. The install is bolt-on without any welding using the 40-spline steering column on the car. The collapsable structure of the hub is designed to absorb an impact. This shorter version of the hub is 2" shorter than the long version (see related products.) Kit includes hub, hub cover, 6 countersunk screws for mounting wheel to hub, allen key, grounding plate and grounding wire. Fits the following Porsche models: 1974-88 Porsche 911 (including Carrera, 930, Turbo, etc) 1965-70 Porsche 912 (US market only) 1978-95 Porsche 928