You can try the micro forums under this forum, they have whole threads on the 18b,t, and r cars. couple things to try, the stock servo saver is very weak even when new, some people tighten them up with an o ring stretched over the spring part of the servo saver, or they get an aftermarket stonger metal spring, I myself would at least replace the stock servo saver with a brand new Associated one, including the front and rear part with the little tab that the spring part grabs as this wears out and then there is slop no matter what. You can also run an aftermarket drag link to take out some slop, bottom line though, htese 18's often have a little slop in the steering no matter what, go check out the micro forums for more fixes, try bigboytoys website for parts.