Ok well, I'll be needing something alot stronger now..
The truck has basically turned into a monster truck, and while it will move with the wheels that are on it, I think I might try the servo route.
Depending on which is easier to put in, I have been thinking HS-55..
If someone could point me in the right direction of which one I should get out of this list, that would be awesome:
Long ebay link
There looks to be different kinds or something, so what would be the better one?
Edit: What about these?
6 dollars a piece.
Do those look any good?