Sorry for the video was bad but i made a quick one of how to do it since i could really find it myself so i had to do it on my own hopefully this helps someo.
How to remove rear door glass on a chevy tracker.
Some models will have tightener bolts on each side to prevent the glass from moving and these will need to be removed also.
This a video showing how to replace the rear door glass on your own instead of going to a shop.
Lift the door panel up and out to release the door panel locking tabs.
By removing the motor if applicable and unbolting the regulator from the door it can be removed.
Remove the door panel push pins and trim screws.
93 chevy 4x4 door removal.