Don't know why Tamiya sells these for the T3-01. the "nut" socket is too small and so is the center axle. I'll have to grind down the axle nut and redrill the center to even have a chance of making them work. No stock nor aftermarket drive axle system sold here or elsewhere seems to fit either (I got the metal axle and two sets of hexes from here as well as the wheel and none fit. considering the wait time to get these, I'm not pleased. As it seems to be a Tamiya problem not sure what RCmart can do about it.
These are NOT a direct replacement for the stock wheels. They use a 10mm hex as opposed to the 12 mm stock hex. . The hole in the middle of the wheel is also too small to fit the axle. Very dissapointed.