Quick question to all you experts. I am about to trade a Freelander for a D2. I have not seen the 'new' car I have been offered yet as it is a long way away. It is on an X plate. Will it have the capability of adding the diff lock or will it have a box that didn't have the links in at all. It's got fsh on 83,000 miles. Anything else I need to know. I do need a diff lock option. Thanks in advance.