Do you have a steering box brace? Over time I had the same issue on my CJ where the mount would break the welds. used the M.O.R.E brace. Lots of people also go to the H1 steering box as an upgrade.So it turned out that my Steering box mount had broken some Welds. I took it off (Major PITB) and got the Steering Gear checked out. Rewelded the parts that had broke loose so they won't break loose again repainted and re assembled. Now tomorrow I get to start bleeding the system which should only take a few hours.
Then I can get back onto the doors.