hey all, I just got done building my new TC5. I have one problem. I was told to run a 69 spur and 28 pinion with my 13.5 brushless. I tried to put the motor in and I can't get the motor close enough to the spur there is about a 2mm gap at its closest, is there something that I am missing or what other gear numbers should I use? sorry if this has been talked about earlier in this thread.