While stock blend doors moved and didn't bind, I could see where they were in overtravel mode on scanner and by the notches on the actuators for both blend and temperature actuators. Upon disassembly of the the rear hvac case, I could see the factory doors were warped, shaft was cracked and foam was compressed from years of use. These replaced perfectly with a little white lithium grease and should hold up as long as vehicle does. I'm grateful they were available and now I have proper function in the rear hvac again. Awsome, shipping was packaged well and on time with tracking. Thanks!