I have recently replaced the sector shaft and seal in my 1952 Chev 1/2-ton without removing the steering box & column from the truck:
-Removed the pitman arm
-Disconnected the exhaust pipe from the exhaust manifold (to allow the shaft to clear)
-Removed the backlash adjuster lock nut and screwed the backlash screw in a couple of turns
-Removed the 3 bolts on the side cover
-Pulled the side cover and sector shaft
-Did not have to disturb the worm bearing adjuster
-Installed new seal
-Installed new sector shaft, reassembled, and adjusted the backlash (worm bearing adjuster did not need readjustment)
Did this fix the leak???? NO! (See new thread posted this evening on this forum)
