fragile spur gears???

[squeeforever]

No, your still overgeared alot. You need to try 13/66 like I said. NOT 16/66. Actually you don't need to compensate gearing for the width but for the diameter. The Big Joes are taller than most so you need to go to a smaller pinion. Try 13. Your temps should be around 160 degrees F or below.

Only thing about the Walbash's are they there intended for the Revo or a Maxx with Revo knuckles. Otherwise they make it pretty narrow which makes it unstable in the turns.