Steering Box Oil Leak

There's a slow oil leak in the steering box. It's been leaking for a few weeks now, but I only had the chance to have it looked at this morning. The mechanic cleaned up the oil from the housing and tightened the tensioner bolt. It seems that the source of the leak is there. I'll have to observe the steering box for leaks...hopefully it's solved. If not, then it'll have to be rebuilt and the oil replaced with good 'ol automotive grease. I'm keeping my fingers crossed.