Originally Posted by
djensen623
Is the stock TRF 419 spur gear (116t) actually 64 PITCH or is it 0.4 module like the F1?
it is 0.4 module. However you can use 64dp pinions with it. I have always mixed and matched them (0.4 mod and 64dp) and never had an issue, along with a car that has a quiet and smooth drive-train.