Taking vehicle glass out is quite easy — just cut the seal with a box cutter — and lift up. Putting back the front windscreen and the rear backlight requires a lot more expertise and skill.
After cleaning the glass and chrome strips, a new seal is placed around the frame (after cleaning and polishing the surface).
Getting the seal to sit correctly takes a lot of pushing and pulling using small hand tools.
Next the glass is carefully placed over the new frame seal and then wedged into the correct rubber groove. A small plastic tool is used to push and bend the seal until the glass is securely held in place.
A locking strip is pressed into a seal groove with a special tool, pushing the rubber up against the glass for a firm hold.
Finally, the chrome finisher is pressed into the seal, covering the locking strip.