Originally Posted by DaveW

Unfortunately i havent messed with brushless yet, so im at a loss on that info, but you can pretty much fit any offered 64p spur on either Tc4. You can spend alot, or you can spend a little. I personally just get the $4 Kimbrough spurs (96, 100, 104) and Robinson Racing aluminum pinions. In the pix above i have some other type of spur, i think its RP? But its been so long ago i dont remember who made it or if its even still available. But i had to countersink two of the holes and use short flathead screws for it to clear (see overhead shot of the car and you can see no screw heads). The Kimbrough spurs use the standard kit spur screws w/o modification. Just remember NOT to overtighten the screws on the spur and you wont have any spur wobble.