Stress finds its weak point ..clutch bearings
Heat and friction is the bearings cause to eventual failure. I like Bigdaddy's advise to adding an extra bearing to assembly. Great off the shelf salution. I would like to elaberate on that by recomending a nice hardened steel high speed grade bearing you use this application. German. Japanees, then American manufactured bearings should be your requirements when ordering. This is one bearing application you have learned not to compromise...so don't. I personally, converted my XXX-NT to run with SG crank engines....Same as my AE GT befor....And will run the same bearings from last year season. The longevity is mostly due to quality bearing application. Having no drive shaft runnout helps allso. Good luck!
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