2020 GMC Denali Replacement Shocks

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TChas999

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My shock compressor runs fairly frequently, even when I am driving. I'm assuming my shocks have gone bad. Has anyone replaced their rear air shocks? Which do you recommend? I've looked in Rock Auto but am having a hard time determining which ones are correct. 2020 GMC Denali Ultimate 6.2L 4WD. Thanks in advance.
 

Joseph Garcia

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You may want to do the soap in spray bottle test to identify the source of your leak. It could be an air line connector issue, rather than a perforated shock air bladder issue.

If you confirm that the shocks are bad, go to GMPartsDirect.com, enter your VIN, and go to the Suspension section. You should be able to find your shocks there, and at a reduced price. Have your RPO code numbers available, as you may have to match them up, in order to identify the correct replacement shocks.
 
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TChas999

TChas999

TYF Newbie
Joined
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You may want to do the soap in spray bottle test to identify the source of your leak. It could be an air line connector issue, rather than a perforated shock air bladder issue.

If you confirm that the shocks are bad, go to GMPartsDirect.com, enter your VIN, and go to the Suspension section. You should be able to find your shocks there, and at a reduced price. Have your RPO code numbers available, as you may have to match them up, in order to identify the correct replacement shocks.
Thanks for the info. I think I will try that. Is there an Arnott replacement for these? I'm looking on Rock Auto but can't tell which of these it may be, if these are correct.
ARNOTT AS3429 Air Shock Info
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Rear; w/Magneride RPO Code Z95; Twin-Tube Design; Passive Replacement


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$232.79
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Add to Cart
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ARNOTT AS3066 Air Shock Info
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Rear; w/Magneride RPO Code Z95; Mono-Tube Design; Passive Replacement


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$287.79
 

Joseph Garcia

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Thanks for the info. I think I will try that. Is there an Arnott replacement for these? I'm looking on Rock Auto but can't tell which of these it may be, if these are correct.
ARNOTT AS3429 Air Shock Info
View attachment 451875 View attachment 451876 View attachment 451877 Rear; w/Magneride RPO Code Z95; Twin-Tube Design; Passive Replacement

$232.79

Add to CartView attachment 451883

ARNOTT AS3066 Air Shock Info
View attachment 451884 View attachment 451885 View attachment 451886 Rear; w/Magneride RPO Code Z95; Mono-Tube Design; Passive Replacement

$287.79
Yes, there is. However, Arnott used to have a lifetime warranty, but they reduced it to 2 years. GM now has a lifetime warranty on their replacement Magneride shocks.
 

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