Free play on the steering can develop at a number of points. On mine, play developed in the hubs at the pillow balls - easily remedied by tightening the the pillow ball socket until the excessive play is removed.
View attachment 4196
The other area where play was affecting both geometry and steering was the upper arms/wishbones. These had to be shimmed. Care needs to be taken that there is no binding either and that the arms still fall under their own weight following the addition of any shims. Mine needed just under 1mm of shim.
View attachment 4195
If slop develops rapidly, this can indicate a loose ball - check before they fall off!
The servo saver spring is very weak. You can tighten it up, but the bottom line is: unless you tighten it up all the way, it gives all the time and makes the steering vague/unresponsive - especially when you're giving it full beanz.
There are threads here dedicated to the springs that are much better suited for this job.
View attachment 4197
Original spring:
View attachment 4198vs the upgrade:
View attachment 4199
Note the space between the coils affords saving action in the event of a tumble/knock etc - but has a much firmer rate affording much more positive steering.