by HomeRacingWorld » Thu Jul 25, 2019 3:14 pm
Yep. And to be honest, a good many standard motor shafts can stand a sanding. Although there is that "sweet spot" to find. Brass pinions will expand to fit motor shafts, but sometimes the pressure is just too much, causing the pinion to deform. They can crack or just spread the teeth enough to cause bad gear mesh. So just test fit.