The replacement channel I used when I did my fire engine in 2005/06 (don't remember which vendor I got it from) is felt lined with NO wiskers at all. The window frame has a little wiggle room and the window goes up and down with ease using to fingers. The new stuff I just got has the window so tight I have to put a death grip on the crank just to get it to start moving...I think I'm going to wear the regulator out before I even get the truck on the road.
I'm going to contact another source tomorrow and see if I can get the non-wisker channel. I'll report my findings here.
Mike B
