Edwin
You did not mention which spur gear is
on your truck. The stock plastic spur
gear is made to wear out. ($3.00 part)
I have clutch-bells with bearings that
are made for the T-Max. I have 17, 18,
19, 20 (stock), and 21 tooth
clutch-bells.
I have a Robinson Racing 72 tooth
hardened steel spur gear, and the 17
tooth in mine for asphalt on-road
racing. With the OS .15 CV, I can do
wheelies