Replacing the glass is no job at all. All it is is two E-clips (careful with these, they are small and like to jump) and unclipping the glass struts. Once you have the e-clips off and the struts disconnected and the rear defogger conectors disconnected, all you have to do is grab the glass and slide it to the left and it will come off. The its two phillips screws to remove the thrid brakelight. And Install the Escalade glass the same way the stock one came off. I can do it in about 5 minutes.