My 1993 F150 XLT 4x4 5.0L has suffered from dragging glass caused by dirty window channels on the perimiter of the glass. This drag eventually caused the metal U-shapped support channel (approx. 1ft. long), which grips the bottom of the glass and is connected to the regulator mechanism, to pull off of the glass.

After doing the "3 nut" fix on my window motors, and installing new permiter tracks, I'm ready to reassemble the two doors, but cannot find any information on how to install the glass with the new bottom edge U-seal in the metal U-channel that holds it. Based on several previous attempts of putting the channel on the glass, all of which eventually came back apart, I hope there is some process to get it to stay together.

Thanks in advance for any assistance.