Steering box rebuild 68 Dart 340

Ok so try this for a plan, go ahead and replace both shaft seals. With a few parts removed, start it up. The hydraulic pressure will blow the lower seal right out onto a catch pan. Go ahead and put all that back together now and let her down. Remove steering column, use offset drill to make a small hole in the upper seal, draw it out with a small screw. Appropriate knocker for new seal install. done, no leak here or there. I might even consider replacing 'O' rings at valve block too while I'm resealing but that would require jack it back up to center the valve.