Jeep Wrangler Owner's Manual page 218

216 UNDERSTANDING THE FEATURES OF YOUR VEHICLE
12. Insert the retainer along the bottom edge of the
window into the bottom side channel, beginning at the
front and working to the rear of the vehicle. Finish by
closing the zipper completely and attaching the Velcro
along the top and rear of the window. Repeat this step for
the opposite side.
13. 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.