I did tear up my first spur gear at club racing last night. Hit a corner dot then heard the ticking. It was in my mod car, I'm running a 114 spur. I noticed that the gear is almost flush with the bottom of the chassis, sure enough 2 teeth chipped right off. Could it be that the gears are getting damaged through the bottom of the chassis, then 2 laps later their garbage?
I've got thousands of laps on my blinky car with a 96 spur...still looks like new. I'm just thinking out loud here...
It'd be nice to help solve the problem for the guys that are having so many DNF's.