I know this must have been a thread before but I have searched and can't find an answer to my question. I am looking for instructions/video/how to...anything that will teach me how to change the window channeling and window post guide seal on my 1991 cherokee. I want to replace all the window channeling because of the horrible wind noise and window rattles. can anyone guide me in the right direction as to how to do this ? are they glued in place, or just snap in ? I know the top and rear of the window is one piece and the front part ( the part between the main window that goes up and down and the little wing glass) is another piece. so if some one out there has experience or know how I sure would appreciate a good how to write up on this. thanks in advance...and happy Jeeping.