Sorry to bring this back up but I was trying to prove a point back on post#17 about shit getting into the spacer and slave and destroying everything plus fluid getting too hot and eventually braking down. These are some pics I took after another 5,000 kms of abusive behavior, including some mild watercrossings. notice the very distict line of clean surface surounded with dirt. The grease I used this time is high pressure high temp. The two blobs of blue in the middle are the "packing" material I've used on the other side of the spacer, which should act as a heat sink. Anybody ideas??