how can you lower a rustler?

less stiff shocks
small wheels
hit it with a hammer?

no... no no!!! Lead weights... or something heavy. Might hinder speed and acceleration... but gets the job done.

zip tie your a arms to your shock towers. I dont know what your shock towers look like but i used to do this sometimes w/ my Overdrive ST, made it look slammed.

adjust the spring location...higher on the mounts and further out on the a-arms...and if all else fail take a hammer to it...

u coudl try and cut the springs but it will make shock travel less and u will bottom out more

shock limiters will do the trick but it will limit shock travel(no kidding)

smaller shocks

removing the shocks/springs completely gets it pretty low too but you gotta worry about bottoming out...100% of the time...hahaha

what you could do is disassemble all 4 shocks and take the proper amount of fuel tubing(depending on how low that you want the rustler to sit) and put the fuel tubing on the part of the shock shaft that is inside the shock body and below the shock piston. this will limit how far your shocks can decompress and give you a lower ride hieght without making you suspension soft and spongy, it will not limit how far the shocks compress.