Well, I'm having a heck of a time with these things. After two days of fighting with them, it turns out half of the front windshield had to be pulled back out because the whole thing has to go in as an assembly. Then I find out I have the gasket for the stainless trim but don't have the stainless trim, so I'm off to order a new gasket for the front windshield.
On to the back window. That is a bear to try to keep the gasket in place and the two ends meeting while installing the window. After two hours, I gave up for the day. I'll try again tomorrow and report my "learnings".