shumacher pinions

[mattb]

has anyone had any problems with shuey pinions not fiting on the motor shaft ie the hole in the pinion is to small?? i bought 2 last week that wouldent fit then got another 2 today and they wont fit on my x12 rotor shaft ive got a 5.5 and a 6.5 x12 and they wont go on either motor which ever way you try them but my old shuey ones fit fine?? incedently the new pinions are darker in colour than the old ones any ideas anyone thanks matt