Left my wife's Disco II parked for four days, then I noticed a wet spot. Found the master cylinder is leaking, after seaching the forum seems that this is not really uncommon but from the post in it seems that most post are for DI's. Is this really common for a DII. Ordering a new master cyclinder and I have noticed pricing difference DI 94-99, DII 00-02, DII 03-04, with the 00-02 being the most expensive. What was the change from 02 to 03?