My 2 cents. I recently had a windows-out paint job on my truck and the windows were all installed using rope. Although I bought new seals for the back windows, I was told by Kelly S. that the OEM window seals on the cargo were in good shape and about the only possible way to keep the original look was to take the windows out with seals and locking strip intact. Apparently, the plastic on the inside of the chrome gets brittle and breaks easily and since it is the plastic that provides the strength to the locking strip, re-using this after removal in a new rubber seal seems like an "iffy" proposition.
I kept my old rubber for the cargo and hatch windows and these were taken out and re-installed without adhesive. They look tight and leakproof.
The windshield was another story. I heard this required butyl cement and I insisted that this be done. I bought new OEM rubber and since OEM locking strips are still available, I bought those too. Unfortunately, Toyota didn't deliver the uppermost locking strip. The installer put in the window with only locking strip installed on the sides and bottom. I brought the car home like that and it took me a couple of painful hours to work the upper piece of locking strip into place.
I was never able to get the two corner pieces in place on the top so I took it to the glass installer at my local Toyota dealership. His comments:
1. No need to use cement
2. You must install the locking strip...all of it...before roping in the window. So, I may not be able to get the two corner pieces installed, but the only way is to start on one end and bury both flanges working your way along the length doing both sides at the same time.
Hope that story helps with your work.