Here is what I read on another post from hoodiegadoo
about the Rustler and what he has done so far for upgrades to help with the steering/suspension.

rear suspension:

35 wt. shock oil
aluminum shocks
stock traxxas springs
2-hole pistons

front suspension:

20 wt. shock oil
aluminum shocks
2.5 spring rate springs
2-hole pistons

Other mods: aluminum towers, suspension arms, suspension arm mounts.


Good Luck!