no, i didnt try to lube the track..im going to do that tonight when i get home. and yea the window goes slow going down, it does feel like it is getting caught on something going down and up. if you let it go up just a bit then push the window back and towards the car it will go into the track just fine, but for some reason it seems like its jumping off track....also the window seal is bad, its mostly gone at towards the bottom of the window..and there is just the metal channel with no rubber.