anyone know how to replace the small circle nub that is on the top right corner of the driver's window? It connects to a track to keep the window straight. Mine broke at the circle part, but the stem, which i found to be treaded, is still there. Do i just buy the plastic circle piece and screw it back on? thanks

 

dealer quoted me 220 to fix this stupid window guide...anyone know a way to diy and rig it?