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Big fat shaft

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Old Jun 13, 2011 | 07:21 PM
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Default Big fat shaft

Hey guys, here's a picture of my rear driveshaft along with the front one. My truck has the tow package and I've been told by several guys that own similar trucks that they don't have this fat rear driveshaft:




Is it pretty common? Can it hold high horsepower? I'm wondering if I can just have it shortened for my 80E swap or whether I should fork out for a custom steel one. Anybody twisted one of these into a pretzel?

Last edited by swift700; Jun 13, 2011 at 07:27 PM.
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Old Jun 13, 2011 | 08:02 PM
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thats the stocker shaft for a one piece. it is paper thin and full of foam. snapped, twisted, broke, you name it...we've done it. I love my 3" steel shaft. Heavy but speed balanced and solid as a rock. (put some loops on that bitch though)
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Old Jun 13, 2011 | 08:09 PM
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Yeah that's a stock one.
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Old Jun 13, 2011 | 08:48 PM
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That's what I kinda thought. It's going into the garbage and a steel shaft it shall be. Thanks, guys.
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Old Jun 13, 2011 | 09:52 PM
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Its not a driveshaft, its a light pole..
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Old Jun 14, 2011 | 02:43 AM
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I don't make enough power to need more than the stock shaft.
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Old Jun 14, 2011 | 05:06 AM
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Originally Posted by dewmanshu
thats the stocker shaft for a one piece. it is paper thin and full of foam. snapped, twisted, broke, you name it...we've done it. I love my 3" steel shaft. Heavy but speed balanced and solid as a rock. (put some loops on that bitch though)
x2, same shaft i had stock.
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Old Jun 14, 2011 | 07:33 AM
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i run that type of aluminum driveshaft in my dually thats making 1025 ft. lbs. of trq..boost launches at the drag strip and its still kickin''...buuut. ive heard of them being weak links forsure. maybe im just lucky?
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Old Jun 14, 2011 | 08:35 AM
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I know the thin steel ones break all the time(mine include), but has anyone broke the stock big aluminum one? They were put on by gm instead of the steel because they're suppose tp be stronger at that length. I also read aluminum handles more tq, and steel can spin faster?


edit: on a side note, great title

Last edited by dlt76028; Jun 14, 2011 at 08:43 AM.
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Old Jun 14, 2011 | 02:44 PM
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Originally Posted by 2doorfury
i run that type of aluminum driveshaft in my dually thats making 1025 ft. lbs. of trq..boost launches at the drag strip and its still kickin''...buuut. ive heard of them being weak links forsure. maybe im just lucky?
I thought the same thing as i too havea factory alum shaft in my Dmax, but i learned that these shafts break at high speeds, due to having a low critical speed rating. They like to twist apart at 120 mph from what reaserch ive done.
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