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Originally Posted by Thegreatescape
No manufacturer identifies and tracks each of the thousands of parts that go into every vehicle. However, knowing when a suspect part was built by a supplier and when that batch was delivered to the asembly plant, they can then normally identify the vehicle build range (and go a little beyond it each way) that would would contain the suspect parts.
I'm guessing that the dealer will be able to identify whether or not the shaft has been properly heat treated by the date code or some other unmistakeable identifying mark on the part. When it comes to a recall there's absolutely no guesswork or judgement call involved!
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That's what I was getting at - if they know there was a problem with a certain batch of shafts, they should be able to very closely narrow it down to which vehicles this applies to. Since the VIN includes a date code and the recall only applies to certain dates of vehicles, sounds like they do have a pretty good handle on when these parts were used. Either way, I got my 2006 in June of 2005 so I'm in the clear on this one.
I hope you are right about the part having a distinguishing mark on it. I deal with steel rail all the time - some heat treated and some not. It looks identical except for the markings identifying it as heat treated. Only other way is to do a Brinnel test on it.
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As for whether it can break under load.... I don't see where it says it can't. They give the example of it braking while in park, that doesn't eliminate other examples.
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They chose a lousy example then. I think I'd be more worried about it breaking under acceleration than having it break unattended in a static condition. There's bound to be one hell of a lot more torque on it accelerating than parked - with or without the parking brake being set.
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Hmmm...As near as I can tell the FEH won't pass that particular test. I've had my parking brake adjusted 3 or 4 times.
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Never had a problem with my '05 holding on any grade. No problem with the '06 anymore now that I adjusted it.