Jeep Wrangler Owner's Manual page 248

246 UNDERSTANDING THE FEATURES OF YOUR VEHICLE
15. Locate the black swing gate bar. Slide the swing gate
bar over the receiver at the bottom inside of the rear
window. The spongy part of the seal should be down and
pointed outward to seal with the swing gate when closed.
16. Install the rear window by starting both zipper ends
at the lower left corner of the rear window opening.
Ensure that the zippers are properly started and aligned
before zipping to prevent damage.
17. Run the first zipper fully around to the right side of
the window.