Rear End Carnage!!!!!

So has anyone heard of replacing the crush washers in the nose with solid shims? Someone i know has a 700hp 440 running an 8 3/4. Per his word, if you replace the crush washer with solid shims, you can avoid the crush washer collapsing and causing the main caps failing.

Has anyone seen/ experienced this modification?

That is hogwash, the caps break because the ring gear is being pushed away from the pinion. It happens on 742 cases also, and those DONT use a crush sleave. The crush sleave sets pinion bearing preload, has nothing to do with cap breakage.