Since the front axle on my YJ won't engage I decided to remove the vacuum pump to see if that was the problem. Well, the motor didn't move much when I tried to slide the fork. When I turned it over I noticed something come out of the the tube. I then proceeded to get about a spoon or two of rust or dirt from the vacuum motor. Has anyone had this happen? Is the motor still usable? The local Jeep dealer wants $140 for a new vacuum motor.