Power Steering box leaking?

So Redfish, remove the Pitman arm, Dust Cap and Snap Ring, on the lower one and just start the car and the seal will blow out. Then I will be able to push a new seal in with a socket just like the top?
pretty much. I should mention that late model power steering gears require a 1&5/16 hex socket for nut under pitman arm. Common socket sets stop at 1&1/4. You may need to increase rpm, steer to one end, and yes it can make a mess if you dont have a big catch pan. Socket or whatever knocker fits and deep enough. I have used the old seal to get a little better fit and/or depth.
Be careful moving seals past sharp edge splines. Cover splines with electric tape maybe. Lower is tapered so not quite as hazardous as upper. A damaged seal will leak worse than a worn one.