The good news is I don't rap in the head when the door sags in the cold but they are so strong that sometimes the safety switch trips and the door won't close without being strapped onto some. Also not sure if they are a bit too long? They were a little tricky to install without stripping, had to push on the door a bit to line up the studs/holes and now the door sometimes binds when the motor is overdriven a bit.