If you want a better setup then the Pro line. Take two of the 3905 servo savers and install them on each side. Use one them to connect up to the servo. I dumped my proline setup for that one. The proline still had a lot of slop in the steering. The mod they show in this thread eliminates that slop and worked out great on mine.
http://monster.traxxas.com/showthrea...=steering+slop
Have to wade through all the posts to find the mod. If you still would rather try the pro line though. PM me your address and I will ship it to you tomorrow. Soon as I find the other post that is. This is the setup I use now on my maxx.