Window adjustment

[M5Ivan]

My passenger side window doesn't quite roll up all the way where it meets the rear quarter window. It's at the correct height at the front near the vent window. I'm not sure how to make this adjustment, I've had the door panel off, but don't want to guess and make it worse. Any ideas?

[charger chris]

Are you sure your door is right?

[Bronzedodge]

Mine does the same thing.  My take on this problem for mine is wear and age. My car has never been apart, has over 155 k on it.  I was looking at a friends 66 window problem the other day, similar issues.   I believe that the channel guides wear and the glass gets "loose".  I can open my door and lift the glass on the back edge 1/4".  There comes a point where you have to restore all the wear items.

Never messed with my windows, someone else may have a better answer.