Captain
Guest
We had the same thing hapen on our '98 R72. What we found was the sealant that is used to seal the bottom of the front window becomes too hard and actually starts to tear from the movement of the cab, and then sqeaks when it rubs against itself. What I did was remove all the old sealant with a knife and hacksaw blade and then resealed it with silicone. I haven't heard a sqeak since. Be carefeull when doing this. I had to pry the window out a certain amount in order to get enough room to cut out the old sealant.