Hi Brian,
Yes - you can get the box out to work on it. As the manual shows, it is quite a bit of work.
Since you have the manual, check the box adjustments first. This will usually tighten it up. Replacement of parts or bushings is rarely needed. Check rod ends first just in case they are worn.
Check steering shaft fore & aft end float per the manual. It can be adjusted with shims under the cover on the front of the box.
Check the short vertical shaft for end float (up & down) & adjust with the adjuster screw per the manual.
A quote from my shop manual;
"Loose steering is invariably attributed to end play of the inner column, which can be rectified by the removal of shims located behind the steering box end cover plate, in a manner already described.
To check for this end float, disconnect the side & cross tubes from the steering lever & turn the steering wheel partly to the left or right lock. Then with the steering wheel held to prevent it from turning, endeavor to turn the steering lever. Should the steering wheel have a tendency to lift, it may be assumed that there is end float of the gear" ----
Good luck,
D
PS - If you take the box apart the biggest problem may be in getting the steering arm off of the box.
[ 01-11-2004: Message edited by: Dave Russell ]</p>