Update.
Jacked up the truck and removed the left front wheel.
Pulled the pitman arm with a puller.
Drilled a small hole in the packing retainer and pulled it out using a small screw held in Visegrips. The packing came out with it.
Cleaned everything up with Gun Scrubber.
Installed the new double lipped seal with a length of pipe of the correct size.
Filled it with John Deere cornhead grease.
Piece of cake.
Thanks to everyone for the guidance!
