Got the happy jack apart, thanks for the thread. Mine was pretty good inside, well greased, gear shaft oily. I had to straighten the outer tube, It got hooked by the tie down when I was pulling away. I had a small curve in the outer tube but the inner one was ok, so it was binding a bit. I placed the tube on the ciment floor and a piece of wood over top and I hit it with a sledge hammer. It got back almost perfectly straight. The inner tube slides easily inside now. Just have to paint it and put it back on the camper, hope it works.