Even the diffs pegged and installed by Ashcroft himself can break after two 12 days driving, that is two european competitions. And I do realise, even during competition, that diffs can break up, so drive accordingly. However, in a competition the idea is to go as fast as you can. I just hoped there was someone out there who had first hand experience to tell if crown ring and pinions would be any stronger. I think it's not so much the bhp but the torque in situations with on and off grip, going with some speed up a steep hill. If the roadbook sends you there, you just try to go up, and hope that nothing is breaking down.
Jan