Originally Posted by lightfoot

I'm really confused...
Are we talking about the same thing ?
The small plastic gear ring that replaces the ball bearing on the spur gear that allows you to use standard 64 pitch spurs instead of the tamiya spur ?
I've been told by more then one person that this will only work on the 103 and NOT the 104...

Is this the part we are talking about ? : http://www.rcmart.com/catalog/rc-f10...1-p-27621.html