I could write a book on this...well at least a four day script. I spent my Memorial Day weekend restoring the vent windows on my '54 3100. I purchased the vent glass, setting tape, weatherstripping/molding, rivets (even the swivel rivet)for Classic Parts (Chevy Duty). That was the end of the easy part, Oh the dry fit went well so that makes it misleading. I soaked the setting tape about 25 minutes in 5w30 motor oil I had purchased by mistake. Then slopped the oil in the vent channel, cut V's into the setting tape for corner and bends, then form the setting tape around the edge of the glass, then proceeded to push the vent glass into the frame. I ran into an early stop, so I got my trusty rubber mallet and pounded the poop on the edge of the glass. Surprising, I got it to seat into the corner and it stopped. I had wished it would go another 1/16" further but it wouldn't. It's weather tight, and shuts fine. I can't imagine installing the vent glass into an installed frame using setting tape.
