[Mike K]

Depends on how loose the new bushings are ?

If it is less than .002" you might get away with using high strength loctite but because it is a steering component, Jordan's suggestion is usually how this problem would be repaired. You need to carefully measure the bush holes in the housing at 180 degree locations because the original bush holes in the housing may be worn to a oval shape which makes it even more complicated, if that is the case, then you might be better off finding another steering box. You can buy a set of bore gauges online pretty cheap.

A machine shop will make some new oversized bushes for you and fit them. The new bushes will then need to be reamed to the final size after they have been pressed in to the housing. It is not a job for the home workshop, it requires special tooling.