Wallsy, can you post a pic or pic-link to some photos of your truck. I'm suspecting, given that you have spotted a lot of differences between your truck and the Aussie ones, that you may in fact have the later model. The US 2004, 2005, 2006 model trucks are NOT the same as the Aussie ones from those years. In fact the Aussie trucks from those years were made in Brazil and are equivalents to the US 2003 model. Hence whenever I buy stuff from the US I have to order for a 2003 7.3 when my truck has a build plate of 2005 from Brazil.