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Author Topic: Torsion Bar Fatigue  (Read 1970 times)

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Offline Ski Edition

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Torsion Bar Fatigue
« on: April 27, 2010, 01:35:13 PM »
Has anyone heard of or experienced torsion bar fatigue.  Was just at the alignment shop for them to look at the AV.  I thought that the driver side seemed a little low.  I measured my wheel wells and since I got my new wheels on (with alignment) a month ago, the driver side has gone down close to 1/2".  I know that's not normal and they said that everything was tight and that the torsion bar may be fatigued.  Is this a possibility??   :verymad:


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Offline Zora Arkus-Duntov

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Re: Torsion Bar Fatigue
« Reply #1 on: April 27, 2010, 04:01:14 PM »
Yes.

Replaced at "about" 30 months/ 25K miles.

Ask your selling dealer about GM "goodwill" assistance.
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Re: Torsion Bar Fatigue
« Reply #2 on: April 27, 2010, 04:06:47 PM »
Guess it's worth a shot! 
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Re: Torsion Bar Fatigue
« Reply #3 on: April 27, 2010, 06:09:36 PM »
I haven't checked mine in a while but mine was the same way, lower on the driver side.   banghead1  What about an aftermarket torsion bar?  Let me know what you come up with.
Thanks
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Re: Torsion Bar Fatigue
« Reply #4 on: April 27, 2010, 06:20:52 PM »
I think Earthquake had a similar experience.  I've been thinking that my truck is sitting too low in the front after 7 years and 208,000 miles and have thought about cranking up the bars.
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Re: Torsion Bar Fatigue
« Reply #5 on: April 27, 2010, 06:55:34 PM »
Can't find anything on the computer so far on aftermarket torsion bars.  Did check a couple parts stores and looking at $125 per.  Didn't get a chance to call the dealer today.   Mechanic suggested I change both of them out while I was at it.
 Will update!
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Re: Torsion Bar Fatigue
« Reply #6 on: April 27, 2010, 07:02:26 PM »
Quote from: Main One on April 27, 2010, 06:20:52 PM
I think Earthquake had a similar experience.  I've been thinking that my truck is sitting too low in the front after 7 years and 208,000 miles and have thought about cranking up the bars.
Hmmm....might be the operator also.  :evil5:  I know I owed you that for something.  2funny
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Re: Torsion Bar Fatigue
« Reply #7 on: April 27, 2010, 07:51:32 PM »
Quote from: oHIobellboy on April 27, 2010, 07:02:26 PM
Hmmm....might be the operator also.  :evil5:  I know I owed you that for something.  2funny

Yea, you did!!   :cheesy1:
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Re: Torsion Bar Fatigue
« Reply #8 on: April 27, 2010, 08:07:08 PM »
I believe all AV's (gmt800), one side sits higher than the other.

For one, the gas tank sits on the driver side.
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Re: Torsion Bar Fatigue
« Reply #9 on: April 27, 2010, 08:22:33 PM »
Quote from: BlueDevil on April 27, 2010, 08:07:08 PM
I believe all AV's (gmt800), one side sits higher than the other.

For one, the gas tank sits on the driver side.

Just for S's and G's, go compare the bolt left in each torsion key and the clearance distance of each bump stop.  That is how it was explained to me.  My passenger side torsion key has approx 3/8" more bolt and has twice the bump stop clearance compared to driver side.
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