E maxx brushless spur gear

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Rangerrico32

RC Newbie
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Weatherford
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  1. Bashing
Hey guys,

I have a emaxx brushless, with the mamba, and I run two 3s 11.1v traxxas lipos on it. I was snapping rear drive shafts left and right, so I went with traxxas aluminum ones. I dont think this is related but after I installed them, now when I punch the throttle the spur gear and the pinion gear make a grinding noise, if I acclerate slowly it doesn't do it, but when revved quickly it does. Is the problem that they are not aligned correctly? thanks
 
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