[Latitude 28]

All,
Went after the salon slide's front slide pin lock this morning, last one of the four.  BTW it was not leaking....yet!  I was able to take it apart without disturbing the internal loaded U-seal.  Found out why my bedroom slide lock seal blew out without warning.  Looking at the pictures inside the slide lock pin housing one can see a slight bulge of the seal.  That bulge is the o-ring portion of the loaded U-seal.  It's an o ring placed inside the U-seal to give it extra seal capabilities.  The U portion is facing the pressure side of the system pressure got between the o-ring and U-seal bulging the unsupported o-ring between the two ends of the snap ring.  Assembled there is about a 1/4" gap between the ends of the snap ring.  Along with that and an old o-ring which felt softer than new ones is the set up for a leak.