Originally Posted by
billdelong
Do you have bent drive shafts?
Worn/seized bearings?
Have you balanced your wheels?
There's no reason why your diff cases should get wobbly like that unless you've got other worn parts that need to be replaced or maintained
*** Edit
It almost looks like you're referencing the center drive shaft?
Is it the front or rear center out drive that's wearing?
Do you have a center spool?
What are your diffs filled with?
You could be overloading your diff and causing the bearing to overheat and melt the plastic
My drive shafts are straight and bearings are good. I maintain them pretty well and replace them every 2-4 wks. I run strictly on GRP tires but never balance them.
These pics are of the rear diff but the same exact thing happens to the front.
I am running a center spool. Front diff and rear diffs are stock(front oil, rear grease). I have tried 50k in the front diff but same thing happens.
How do I know if I am overloading my diffs?
My setup is: Castle 2200kv, MMM, Turnigy Heavy duty Lipos 6s 60-120c, 3000, 4000, 5000mah. Gearing is usually 38/27 for bashing and 38/34 for speed runs.