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Trunk shock-absorber

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Old Dec 11, 2007 | 06:30 PM
  #1 (permalink)  
jefexp's Avatar
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Default Trunk shock-absorber

Any know where to buy a new trunk shock-absorber. Mine works still, it keeps the trunk up when I have it open, but when I close it, it slams down. It is as if there is nothing to slow it, even if I let it go 6 inches from closing. It should make a soft close sound, but it slams down. Any suggestions?
 
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Old Dec 11, 2007 | 07:10 PM
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BrianBrave's Avatar
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Default Re: Trunk shock-absorber

http://www.chryslerpartsdirect.com/

Body Parts Catalogs

200X Chrysler Crossfire
  • Lift gate
    • Gate and hardware
      • Support cylinder
$27.30
 
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Old Dec 12, 2007 | 04:57 AM
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spensley's Avatar
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Default Re: Trunk shock-absorber

Mine has always done that, so I thought that was natural.
Presumably I need to replace it then.
 
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Old Dec 12, 2007 | 11:13 AM
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Default Re: Trunk shock-absorber

I don't think it should make a soft close sound when dropped the last six inches.

By the time you have closed the hatch that much, the gas-struts are at an extremely disadvantageous angle.

Even if they exerted a linear force several times what they do, by the time you close the hatch that much their mounting geometry is such that they can't push very hard in a direction that supplies a meaningful moment to resist the moment (torque from the weight of the hatch trying to rotate about the hinge) created by gravity.
 
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Old Dec 12, 2007 | 11:23 AM
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spensley's Avatar
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Default Re: Trunk shock-absorber

I agree with what 'Display_Name' says.
I looked at mine during lunch. On the last 6" of travel of the hatch, the gas strut barely compresses at all. I lowered the hatch down slowly over the last 6" (instead of letting it go) and it does not latch correctly, it only latches on the first indent (not all the way).
The gas strut is probaly fine.
 
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Old Dec 12, 2007 | 08:33 PM
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jefexp's Avatar
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Default Re: Trunk shock-absorber

I guess maybe it's in my head. It just seems like it closes awfully hard and loud. Thanks for the info and the help.
 
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Old Dec 13, 2007 | 02:44 AM
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RickZ's Avatar
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Default Re: Trunk shock-absorber

I think they all close like that, I don't seem to notice it as much anymore when I close mine, but if you happen to be sitting inside the car when someone else closes it, you would swear they slammed it shut.
 
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Old Dec 13, 2007 | 07:44 AM
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MPHUK's Avatar
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Default Re: Trunk shock-absorber

It is a poor design, I am supprised that no fingers have been badly damaged. I have an 06 and it is just the same.
 
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Old Dec 28, 2011 | 11:51 AM
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X-fired's Avatar
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Default Re: Trunk shock-absorber

Mine have been getting weaker and weaker and they don't hold the hatch up well in cold weather so I ordered two from Amazon for $18/each. P/N is 6189.
 
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Old Dec 28, 2011 | 12:10 PM
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onehundred80's Avatar
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Default Re: Trunk shock-absorber

Originally Posted by Display_Name
I don't think it should make a soft close sound when dropped the last six inches.

By the time you have closed the hatch that much, the gas-struts are at an extremely disadvantageous angle.

Even if they exerted a linear force several times what they do, by the time you close the hatch that much their mounting geometry is such that they can't push very hard in a direction that supplies a meaningful moment to resist the moment (torque from the weight of the hatch trying to rotate about the hinge) created by gravity.
+1
That's a good explanation of the mechanics of the system.

My SRT would appear to have a lighter spring force than the NA, but will lift the hatch without the spoiler or spoiler deck fitted from about 15", a surprisingly low angle. These are no weaklings and must take a bit of effort to collapse.
 
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Old Dec 28, 2011 | 01:43 PM
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maxcichon's Avatar
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Default Re: Trunk shock-absorber

Originally Posted by onehundred80
+1
That's a good explanation of the mechanics of the system.

My SRT would appear to have a lighter spring force than the NA, but will lift the hatch without the spoiler or spoiler deck fitted from about 15", a surprisingly low angle. These are no weaklings and must take a bit of effort to collapse.
Dave, I thought you (and others) would find this little guide useful:

McMaster-Carr

A great tool for future projects, no?
 
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Old Dec 28, 2011 | 05:42 PM
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onehundred80's Avatar
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Default Re: Trunk shock-absorber

Originally Posted by maxcichon
Dave, I thought you (and others) would find this little guide useful:

McMaster-Carr

A great tool for future projects, no?
That is a good site to remember. Useful info on it for the future. If you cannot find an item you want there, it probably does not exist.
 
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Old Dec 28, 2011 | 05:50 PM
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onehundred80's Avatar
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Default Re: Trunk shock-absorber

Originally Posted by MPHUK
It is a poor design, I am supprised that no fingers have been badly damaged. I have an 06 and it is just the same.
If you look at it like that, there is a danger of shutting your fingers in the doors and hood as well.

Living has dangers associated with it, only the dead are safe.
 
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Old Dec 28, 2011 | 06:30 PM
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turbomar's Avatar
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From: Barrhaven, Ontario
Default Re: Trunk shock-absorber

Originally Posted by maxcichon
Dave, I thought you (and others) would find this little guide useful:

McMaster-Carr

A great tool for future projects, no?
I agree, a very usefull supplyer for mechanical projects. Thanks for sharing
 
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Old Dec 29, 2011 | 09:08 AM
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maxcichon's Avatar
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From: MOFN, AL, 70 miles from George
Default Re: Trunk shock-absorber

I'm sorry-the link I was trying to highlight was the "About Gas Springs" article at the top of that page...a complete design guide to using/speccing them.
 
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