Thats a really interesting point about the DC. There are a few opinions on why they fail and to be honest I think it comes down to the way they get used, but never the less they shouldn't be failing... but do. What I found there is that when using them heavily offroad the DC become prone to failing and the more lightly they get driven the less likely there is to be a failure. I would break one every 11 months and even when I started using the Tom Woods 1310's they would still fail. When Tom changed his socket flange to cast steel and made the centre bearing greasable I've never had a failure since, and that was several years ago now in both front and rear applications. My opinion is that its the centre bearing that first fails, but its externally seen as a uni joint bearing failure and it also explains why it happens on the D2 but not the D1. Never the less, if you're worried about the DC joint failing, or if it does fail, there is a permanent fix for it which is a Tom Woods Shafts 1310 shaft. They typically give you warning before they fail and you can check it with a quick twist and shake of the shaft. BTW, Tom is just the most lovely bloke you will ever meet, he is really just that nice a fellow and an absolute pleasure to deal with.

