Rear/front diff

[PARAGON]

Originally posted by Mr. I - Man:
It looks like a metalurgical problem the teeth don't look stripped or sheared off in the case of a high torque load, it looks more like they cracked off due to porosity (bad alloy mixture,bad casting or bad block of raw material if they are a machined and forged parts )

I think you are on to the answer. I am not sure what this new PowerDense entails but maybe it's new technology and there are imperfections that can occur.

Many times items are run through a heat/cool cycle to enhance hardness and durability and maybe the process allows for one in xxxxx amount to come amount improperly "cured."