I believe that the clutch has failed on my tailgate window lift. The exterior mechanism spins and doesn't lift the window unless I insert a screwdriver into a slot behind the lock. Also I found a piece of metal inside the tailgate that resembles part of the clutch mechanism in the LM truck catalog. Also found the clip that holds the clutch inside the tailgate also. Anyways, my Haynes manual doesn't tell me how the exterior mechanism can be removed. Thanks!!!