I had a recent post on my sloppy steering box on my 84 190E.
The advice I got was to back off on the adjuster lock nut and turn the screw COUNTERclockwise. Small increments were advised, such as maybe quarter or half turns.
I checked the shop manual and saw the reference to the rolling torque wrench. I could have used that settting up my differential.
'84 190E 2.3
'83 Porsche 944 (track car)
'84 Porsche 944 (parts car)
85.5 Porsche 944 (sled)