breaking diff rings

[Cooper]

Hi, speaking for pred X11 team Belgium because the driver his English isn't so well.

We have a circuit in Belgium with a loooong straight, and at the end there is a very steep hill, so you have to hit the brakes VERY hard to prevent yourself from flying 15m high and end up in a tree(I did it with B4 )
We put the pred out to race there and we brake the diff rings all the time, causing the diff gear to sit misformed and stripped away. The car is superb, except this . I have only had broken diff rings caused by tightening it to hard.
loosening the slipper is no solution because we won't make the double jump anymore.
loosening the diff is no solution 'cause it would slip before the slipper.

what should help is that the outdrive should support the diff ring better, so it wouldn't break anymore.

Anyone else any input?