Does anyone know if the front window regulators are sold as a a whole unit or seperately? (motor seperate from regulator) I fixed both the rear windows and went to tackle the drivers door. Took the door panel off and both window track bushings were in tact. The window moves up/dwn by hand with no problems. When the window switch is used, I can hear the window motor operating. Thinking the actual regulator is stripped. Anyone had this happen? Thinking I'll replace the whole assembly while the door panel is off. Just looking for some feedback 'cause have not really heard that the regulator goes bad often. Thanks in advance!