Yep. Ultimate traxxas is a great resource. The trucks are more suited to bashing but follow the advice on that site and you'll have a great time racing it as well.
Might not be trouncing any T4s soon, but you can sure as heck be biting at their heels!
And its great fun designing your own parts for the truck... lol, i wouldnt be taking to a T4 with a dremel in a blue fit! But a 10 dollar rusty shock tower? Bring it on!