Probably a pooched steering pump. Had steering up until the other day when I tried to leave my driveway. U-joints were right gummed up with old grease and dirt that had solidified. Cleaned all of that off and still no power steering. The main cylinder is moving slightly and wheels do turn with heavy arm strength. The steering pump is making some noise though and when I put my hands in the steering hoses, I can feel sort of knocking through them. Likely something banging around inside the pump I figure.