To Suit VB – VR Commodore Sedans and Non IRS Club Sport Special ... Offer the towbar under carriage to the vehicle and secure using bolts, flat washers, .... Underneath there are two nuts that need to come off to fit this mount on. I have all ready fitted it in this picture. The two empty holes in the mount must be furthest to​ .... Test the Trailer socket using a light board or multi-meter. 12. Secure the all harnesses using cables ties (not supplied). Refit all removed pa