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Hey all... New photos http://home.thezone.net/~bpriddle/crack1.jpg http://home.thezone.net/~bpriddle/crack2.jpg There were also line fractures in the middle of the shaft. Like someone bending a piece of wood and it starts to crack. The main thing is warranty covered it. Sorry for late reply...

Thanks for the replies. First, it is probably steel, not iron. My mistake. Second, the hex is by design. The sprockets that fit onto the shaft stay in place with this design. Third, I was doing 10mph at the time, no sudden accelerations etc. There was only 200 miles on this shaft. I haven't...

Helo again...I found a more appropriate forum for this topic... thread330-87679 and Metallurgy Engineering. Sorry for cross posting.

Thanks for the replies. I've scoured sled forums and others with the same shaft have had it crack. I figured who better to ask but professionals in the area. My dealer doesn't know if it is a bad shaft, just that it should not crack. Right now the shaft is at the dealer, but when I go back to...

Sorry I cross posted this...but this seems like the better board. http://home.thezone.net/~bpriddle/shaft.jpg http://home.thezone.net/~bpriddle/shaft_closeup.jpg This is a cast iron drive shaft on my new snowmobile. It is 1 inch thick. It cracked for no reason that I can see. But it has a...

Hello... I am not an engineer although I tried but my first Chemistry course did not go over very well. http://home.thezone.net/~bpriddle/shaft.jpg http://home.thezone.net/~bpriddle/shaft_closeup.jpg This is a cast iron drive shaft on my new snowmobile. It is 1 inch thick. It cracked for no...