I don't think it's particularly important to balance your tires on the truck, especially if your just bashing. They are usually pretty good out of the box. One thing to be careful of though, the stock rc10gt rims have 2 holes in each one. If you get water in them you'll throw the balance way off and unless you remove the tires from the rims they'll be way off. I saw somewhere, someone mentioned sealing the holes, especially if you are cleaning your truck with water.