How hard was it to get the glass in?

Not hard really I just watched the guy take it from the truck in the yard and did the same. I had to take a metal brace off the back seat of the inside of the cab first remove the side seat buckle plastic cover then the bolt and tried to be careful and remove the plastic trim inside but was brittle so a few pieces cracked had to fix that and took one screw from the inside panel between the body (metal area) kinda like the inside of the door and just a little under that was 2 more little screw bolts and take the busted piece out and reverse the process. By putting the new piece in and tightening it with the 3 screws and then you align the inside panel piece and other parts and boom your done. This took me 30mn

Ah, I see! Thanks for the information! I was wondering if it was like windshield glass that involved a lot of removal of old sealing and adhesive...

No none of that for the side glass or the back glass the front glass yes