55.2-59 Power steering box leak

[tbrown5079]

I used an 81 El Camino front clip for my swap which I am very happy with. The only issue I have is a leak at the adjuster for the worm gear. It is a 3 bolt 605 box with o ring fittings. I don't know if there is a seal or o ring inside the case or what. I have tried sealants, washers with rubber centers and just the jam nut, but nothing seems to stop the leak . Is this a sign that something in the box is worn? A rebuilt box is a little over $100 so I think it may be money well spent. Any suggestions? Thanks, Tbrown