This is a step by step restoration process for the late style (late 75-78) side slider windows in your coach. The great benefit to restoring these windows is the amount of air they allow in when open. New windows are available but have a limited opening. The late windows (built by Hehr) are of good quality and all of the renewable components are still available. It is not necessary to remove the frames from the coach as I did to replace shrunken rubbers or even the glass, but since we removed the frames for the paint process I opted to completely dismantle the units to rebuild them. So, here we go!