Howdy all and thanx in advance for any replies, I have a 71 Jimmy with power steering and my steering box has started to leak. Is there a kit that can be used to replace the seal and how difficult of a job is this?? If there isn't, any suggestions on what to replace it with? Special brands or types or just something from advance?? Running 35 inch tires which adds some stress to it. The leak is not from where the hydraulic lines hook in.