12) Getting the glass out was a bit fidgety. Lower the glass to get it off the rear seal, then pull it outwards and upwards and forward. I was unable to simply “Lift quarter window glass forward out of the shell” as described in step 8 without getting it clear of the rubber at the top.
13) With the window and slider out you can see the complexity of the motion. The window moves in a straight-ish line for a few inches, then rotates fore-aft slightly to change direction and slide rearwards while also being torqued slightly inboard.
14) I cleaned the rail and the jaw and relubed with a ceramic based grease.
15) The jaw has a spring and a hollowed area that I treated like a bearing and cleaned out the old dirty grease and re-packed using a putty knife to force the lube into it. It sort of squeezes out, but I presume some of the problem is due to no-longer lubricating lube in this jaw.

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