Ya I think so, it sounds like if I get a group 4 coupling and one of these
http://www.rallydesign.co.uk/product...ducts_id=11805 I could just re-make my extension as this splined steering column shaft would just go inside the extension to be welded up and it has a smaller outside diameter than the extension tube? (I used 25.4mm od I think). Then I guess all I need to do is get the rack back in the right position so that when the trackrods are connected to the hubs, the rack arms are level and let out an equal amount on both sides?