I have a leak in the clutch hydraulics of my ex-MoD too. My truck is leaking fluid though, it started happening when temps got below freezing, which just recently occured. So I am assuming it is the seals on the master or slave. I don't see an obvious leak, is there an easy way to identify which is the culprit? And is it an easy job to rebuild either if serviceable, or is it better to replace w/ new o.e.? I have limited time and $ due to a home reno project, so any advice is welcome.