Yeah I think I read the same article Nato. Wondered how he was still running. I too have been running a stock rear end with just a chain over the diff for the last 6-8 years. But things were wearing or losening. Mind you I did crack a moustache bar long, long ago. Needed a replacement. Probably as a result of a burnout putting too much pressure in place unsupported or set up for big HP. I suppose I am just raising awareness of other things that can be done if you are striving for bigger, better, best case scenario.