Buddies twisted driveshaft at 110
#14
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Reread what I posted.. That was not the rpm in which the driveshaft broke. That was fuel cut rpm. But I guess the factory driveshaft can't handle that and people like skeet who run stock driveshafts are on borrowed time, the fact of the truck bottoming out had no affect in breaking the ds?..
#16
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I heard that hours before I had a friends driveshaft blow up on me while I was driving behind them
#20
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No one will know for sure what caused the failure... however, running lower rear end gears will certainly spin the driveshaft faster than before and I believe you hit critical speed of the shaft. Critical speed is the max speed a shaft can spin before becoming unstable.