Removing rear window; 66 Valiant

I robbed the reveal moldings and gasket from a 68 notchback in a parts yard years ago. The yard owner said, "If you break that glass you buy it too". I did have a helper. We didn't break the glass. It was hot summer time and the OEM butyl sealant was still somewhat sticky. I used a plastic tool to pull the gasket away from the glass and sprayed armorall like silicone in there from a pump spray bottle. The guys in the cleanup shop called this stuff goats milk. They used it on tires, etc.. Anyway, that kept the sealant from re adhering as we worked all the way around the glass inside and out. No seats in this car so we piled several old tires inside to create backrest/recliners of sorts. Shoes off and 4 sock feet against the upper inside of the glass and slow even push. The upper portion of the gasket wanted to roll out with the glass so I let it. I was spraying the goats milk at that while pushing although most of it was raining back on me LOL. Once the glass was out all the way across the top and part way down both sides, we went out, peeled it the rest of the way out and laid it inside the car on those tires. Good reusable gasket and moldings earned.