This is the ball pin seat for the steering side tube (track rod). 1945-1955 Silver Wraith, Mk-6, R-type, Silver Dawn  

This is the ball pin spring seating.  Note: 2 Required per car  (Sold separately) 1946-1955  Silver Wraith, Mk-6, R-type, Sliver Dawn (From B213PU)

This is the main pin for the inner steering track rod.  1966-1980 Silver Shadow, T-series, Shadow II, T-2, Silver Wraith II    

This is the ball pin for the center steering lever / track rod center to steering or idler lever on the later MKVI (from B215PU) and R Type models.  It accepts seat RF8288 Note: 2 Required...

This is a strap pin for the lower bearing housing gear changing housing for manual gearbox. 1945-1955 Mk-6, R-type, Dawn with manual gearbox