Joe, I think Filling Station MIGHT have a sector shaft, if they still have any left. My concern would be a worn worm gear, but I guess I won't know that until I take it apart. Can try to find tolerances and specs, as the manual doesn't contain them.
I could probably just drill out the zerk hole to a larger size, tap it and plug it so as to be able to pour a self-leveling lubricant.
Ron
