> You guys are going to love this one! Eeeeek! What RPM? or speed? any idea, it shouldn't have overrevved, the FI would shut off the gas nicely (BTDT), and the engine braking should be sufficient to prevent runaway I presume... so I'm lost. I'm guessing the clutch disc had a lot of cracks in it, and finally let go at higher but normal RPMs. If you look at some pieces where they broke you may be able to see 'beach marks' like the sand ripples on a beach. These show the growth of fatigue cracks (like tree rings) The surface appears dull gray, where the metal has been progressively parting. Once it lets go the metal should appear more jagged, since it's tearing apart fast. Finally, if there are small areas silvered over this is where the loose pieces have been bumping into one another. So, longterm slow failure should show beach marks + tear zone (maybe +silvering), quick failure is tear zone only. Any chance the pilot bearing in the hub is out to lunch too? Although this is not attached to the disc it keeps the shaft/disc centered and spinning properly. It _may_ be a factor. Keep us posted, this could've been real nasty shifting from 3rd to 4th on the highway at 55+mph!!!! Thanks, glad no personal damage. tim
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