Can anyone recommend what flywheel i should get for my earthquake 3.5 nitro car? i was doing some jumps today and my car flipped and it looked fine. Then i opened the body and saw that some of the teeth on the flywheel was all messed up. I pushed the car on idle and it made a horrible grinding sound. Is it easy to replace? If it is then maybea suggestion on a upgrade flywheel? Any input would be great and much appreciated.