If you are having troubles with the crazy stock steering setup than you need to get a CKRC Servo on Axle Steering Mount. This moves the servo down to the axle. It helps ALOT! They also have alot of other great WK crawler parts.... plus they are my LHS. They are great. The owner even went to the nationals!!!
Anyways here is the link:
http://www.ckrccrawlers.com/shop/ind...=index&cPath=1