The spurs on the last diff box I had was striped so badly that my buggy won't move.I thought it was because when I land jumps the cement scraps the spurs.On my new diff box I placed a piece of foam under the chassis where you can see the diff box spurs.After a few minutes running my buggy,it won't move.I saw that the spurs on the diff box was striped a bit.Whatever is causing my diff box spurs to be striped has to be from something in the buggy.I did run my buggy on my front lawn so maybe something is stuck in the buggy.I checked the diff box.Where else should I check?