I have 1400 hours on my 1999 vintage flap actuator and somehow missed out on the problems others have had. Now, when I lower the flaps past about 1/3 at approach speed they slow and make a groaning sound, like the motor is laboring a little. They still extend all the way (at least for now). Has anyone rebuilt one of these? I am planning on swapping the motor for a new updated one but do I need to worry about the overrunning clutch or the jackscrew? I have searched and found a lot about the motors but nothing about the rest.