Here are some links that may help you.

How to reseal a MB steering gear
(Without loosing your balls)
Written by David Petryk
Photos by Gerard Buhlon

Steering wheel play (slop)
http://www.peachparts.com/shopforum/showthread.php?p=54385

Pics of Steering Box Swap
http://www.peachparts.com/shopforum/showthread.php?p=744562

Help! Steering box input shaft clunking
http://www.peachparts.com/shopforum/showthread.php?p=575725

Photo of steering box adjustment nut?
http://www.peachparts.com/shopforum/showthread.php?t=167823





Have a great day.

__________________
ASE Master Mechanic

Prototype R&D/testing:
Thermal & Aerodynamic System Engineering (TASE) Senior vehicle instrumentation technician.
Noise Vibration and Harshness (NVH).
Dynamometer.
Heat exchanger durability.
HV-A/C Climate Control.
Vehicle build.
Fleet Durability
Technical Quality Auditor.
Automotive Technical Writer

1985 300SD
1983 300D

https://www.boldegoist.com/