VintageMopar - I trust you on this. Your posts have been right on.
I don't trust myself. I've seen too many people screw this up.
Chris - If you feel up to it, follow VintageMopar direction. Go slow and easy ... tighten a bit and test drive ... repeat until you like the steering wheel feel and behavior.
There's another reason I prefer replacement to adjustment. On a steering gear box that's been in use for over a third of a century, the seals and so forth are getting old and may be deteriorating.
Everybody, and especially Chris - 'Power steering' is a bit of a misnomer. Hydraulic assisted steering would be more appropriate.
Losing the hydraulic pump (i.e., power steering pump), pump belt, or pressure hose will not cause you to lose steering. Instead, you'll have what amounts to manual steering ... difficult to turn when the vehicle isn't moving and becoming easier as the vehicle starts moving.
(My '49 Int'l Metro stepvan was roughly the same size as most Class C motorhomes and had manual steering. Great for building upper body strength ... I won a lot of arm-wrestling contests in high school and college, mostly because my strength wasn't readily apparent.)
The same applies to power brakes ... vacuum assisted brakes would be more appropriate. Likewise, losing the brake booster or vacuum hose turns your brakes into manual brakes, requiring more pressure on the brake pedal.
