It’s such an important and tricky job that I recommend you take it somewhere to be done professionally.
That said, I have done this twice. Follow the procedure posted below and do a ton of research on how to install a windshield because the process is similar.
Removing old adhesive from the donor glass is a pain, but take your time and BE CAREFUL as MJ rear glass is impossible to replace.
A local body shop supply store had the adhesive, and I made the cable saw for cutting out the window.
Thanks to 64Cheyenne for the great write up!