Steele carries the seals for the vent window on your truck although I’m not sure if it’s the outermost seals or the glass setting seal. It’s worth a call to them. Maybe they can help.
They were my First call, out of the 9 Catalog/Online Restoration books I have only about 4 had something called "Setting tape" with 1 having 3 thicknesses like ( .031 or 1/32nd), (.047 or 3/64/ .04688), and (.063 or 1/16th.) and Steele having 1/32nd. & 1/16th. Steele has two setting type tapes one with a Cork Rubber backed with a felt Linen material other side @ $5.69 a foot which doesn't seem to have any/no stickum base material and the other one being a "moldable type" somewhat Rubber Type Polymer @ $4.99 a foot. That being said the "moldable type one does have a stickum type material that would in my mind grab both the channel and the glass at the same time BUT I still can pull the wing glass out of the channel wrapped with the moldable material. I have just one OEM wing window (extra laying around) that the thickness is at .198" and the new/aftermarket wing windows thicknesses are at .186" and my wing window channel is at .320 +/- so you do the Math Nothing fits or holds the glass good enough for a tight bond.
I know this was Long Winded but it shows I have tried my best without finding a "Solution" for my Dilemma. WHATS NEXT YOU'ALL ? LOL are we having a great New Years Yet ?