I have a 69 cougar with glue in windows. I fixed the passenger side one shortly after I got the car in 2008, it took me 3 tries to get it done somewhat right. My windows rattle, are hard to crank up and have a bad wind noise at speed. Would the bolt in style window give me any relief of the aforementioned problems I'm having or would it be a total waste of time and money? I thought about going electric but decided to keep my manual roll ups. If anyone here has done this conversion can you please give me some details as to who offers a good bolt in kit. Thanks, Martin.