Kirk,
Half shaft breakage can be a problem but it is usually a torque (twisting)
breakage and most often at the splined end where it goes into the diff.
Others know more about this. I suspect it is due to the quality of the metal
in the half shaft. I broke two of them on my 1946 MG TC back in the 60s. I
was told that the steel used wasn't up to snuff and one mechanic showed me
what he said was "crystalization" of the steel in the half shaft.
Anyway, point is, I doubt the comment about "hitting the rear end down".
Most of the failed ones I've seen happened when someone dumped the clutch
placing a sudden hard twist on the end of the half shaft in the diff. On the
busted ones you can actually even see the twist in the splined end.
Cheers!!
Jim
On Thu, May 20, 2010 at 1:43 PM, Kirk Hargreaves
<khargreaves2@gmail.com>wrote:
> Only two times did I take my 1550cc Road King up to 100. . and that in
> front of Mono Lake in Ca where there was no one around but my buddies
> riding
> behind me.
>
> Every summer we would ride from the top of Tahoe down the West side, out on
> to 395 by Mono Lake and up into Yosemite, back side of the park through the
> tunnels up to Glacier Point. Five hundred mile day. By the time I finally
> got home I didn't care if I ever rode again.
>
> Question for the list. .
>
> I ran into a guy today who used to have a 64 Sprite. He told me that he
> would break his rear axles. I told him that I have never had that problem.
> He said that he was hard on his car and that if you hit the rear down at an
> angle they are likely to snap at the ends.
>
> Is this fairly common with our cars or was this guy a maniac of some sort
> really pushing his car too hard on bumpy surfaces?
>
> I was not aware that this is a potential weak point?
>
> Kirk
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--
Cheers!!
Jim
In my many years I have come to a conclusion that one useless man is a
shame, two is a law firm, and three or more is a congress."
John Adams
US diplomat & politician (1735 - 1826)
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