Originally Posted by
sirweasle
I found i had trouble with the bearings in the rear diff... Couldn't handle a 3s with only about 4 uses. Overheated, seized then melted the diff housing. Luckily there was no damage to the diff gears. Have you found an alloy upgrade yet?
The best way to help those bearings deal with the load/heat is to use a metal shielded inner bearing and a combo outer bearing with a metal inner shield and rubber outer shield. Pack the cavity between the two bearings with grease. Now when they heat up, they will have lube and be much happier.