[Allan1875]

Originally Posted by Zippy G

I have a similar problem with my sons YZ-2, it pulls right under braking, I'v put it on the bench and gone through drive train etc, no problems.
Then I have moved to the front of the car, with the car on a stand I spin the front wheels, the left wheel spins for 4 times longer than the right wheel, so dad says dodgy bearings, yz-2 says no, dad says stub axle, yz-2 says no, dad says hub, yz-2 says no. Dad says AAARRRGGHH

LMAO!!!

I have since changed every part on that corner but its still the same, I have tried even changing hex pins and the hex's even rotated the wheels from side to side but still the same.

Any advice would be appreciated

Regards Sam

If it's rotating freely, that won't be causing it to pull under braking, there is nowhere near enough resisting force to cause that by the sounds of things.