I think you take the pitman arm off and slide the pitman arm shaft out the top with the cover, then take the large nut off the input and slide the worm and all out. Is this correct?

Also, am I correct in interpreting "chassis lube" as grease? That's what's in there now, want to make sure that's correct.

Some of my crap:
1963 C-30 flatbed dually 292/SM420
1965 C-10 LWB fleet 250/column shift 3 speed
1965 C-30 9' stepside 250/SM420/4.10 gears (my DD)

Website I made for my crap:
http://www.66submarine.com