03kingranch

While ending a good day of fishing last saturday for opening day, i was pulling out of the parking lot along the side of the road and drove over a rock trying to avoid a collision with the left rear tire and another rock. Although i did manage to hit the rock in which i drove over, with the bottom of the truck (most likely the rear differential). Today after stopping at an intersection; as i accelerated and making a left the rear-end of the truck started shaking and after that there was an oilly scent. Any clues on how i can fix this?