73 Rear window gasket?

Go with non vinyl gasket and use a butyl caulk from the picture it looks like it has been leaking for some time
Sweet! Your confidence has persuaded me lol. So the non vinyl style and some 3m butyl sealent should do? I'll order that up and I'll pull the window and do any repairs I need to first. It has been leaking for God knows how long, I feel like I rescued the car from someone that didn't know what they were doing. I've only had it a month or so now.