Originally Posted by
duggyload
Why cant i get my 12th scale diff as smooth as my photon
Is it the spur that comes with the kit
Hasnt got the tear shaped ball holders like the photon
Do you think that is the reason or am i doing something wrong
You should be able to get the diff at least as smooth as the Photon diff. Try replacing the bearing in the thrust position (1/4x3/8 flanged) with an aftermarket steel bearing. We have found that the kit bearings, while fine for the rest of the car, do not perform well as a thrust