1971 Dart Swinger Worm Gear Adjustment

If that thing is 40 years old, I'd pull it an do this.
It needs it.
These probably should be stickies.

Manual Steering Box...assistance needed...

Manual Steering Box
It's a power steering box, is the rebuild way more complicated? Also, as I mentioned above, the sector shaft adjustment bolt and set screw are fused together, do these come in a rebuild kit? If it's out of the car I might be able to heat them up and separate them, but I tried for several hours while it was in the car and couldn't get them apart.