So I'm told..... I got a mate (who works for Ford as mechanic) and his XR4x4 has the full Cos 4x4 front set up - including Cossie 4x4 hubs. He has 4x4 discs but 24v Cossie calipers and acording to him there is no difference in fit AT ALL to the 4x4 Cso items.... So I sorted a deal with another mate for a set of 24v calipers today