i have a lightning stadium 10 by hotbodies, its 4wd, and has less than 4 tanks ran through it. im kinda new to the hobby and don't know what the problem is, but my car flipped a few times and the rear wheel drive is out. Just the front wheels spin, the rears spin when its off the ground, but at a way slower rate then the fronts. I dont have enough about the truck to know whats wrong myself, and the hobby shop is closed until monday. I remember reading in a different post about someone having the fornt wheels go out in a race, but nevre mentioned hwo he fixed it. Im just wondering if anyone could give me your ideas on whats wrong.

thank you in advance