2007 GMC Yukon Denali 6.2L v8 - planning to convert back to stock z55 / autoride all around - assistance/advice/input would be v appreciated

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petethepug

Michael
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* All 07-14 Yuke Denali z55 (Autoride)
* Some 07-14 Burb, Tahoe Yuke equipped w/ optional z55 (AutoRide)
* All 07-08 Esky z55 (AutoRide)
* All 09-14 Esky z95 (MagRide)

* z55 systems have struts filled with hydraulic fluid and use same mechanical parts as z95 except strut and spring rate may differ. All have electrically actuated valving.

* z95 systems have struts filled with meteorological fluid (M/F) that cause cancer in laboratory rats in CA. They perform similarly to z55 except they also electrically charge the M/F to instantly change the viscosity of the damper fluid along with electronic valve control like z55.

Both have auto adjust rear air bags for height via a compressor. Both use a different control module. The control modules are not interchangeable for functionality. It has been attempted with a z55 module on z95 system. It did not ride well.

The z55 on Gen 2 and Gen 3 (07-14) with 17”-20” rims is one of the best rides for a full size SUV. z95 can be too harsh for 22” rims when suspension components wear like bushings & strut bearing.
 

petethepug

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Ran outta room.

Below are the parts and prices of front strut rebuild from rock auto. Ignore the TPMS module & z95 struts since you’re z55. The link below shows how to swap from steel to aluminum front suspension like the 15-20 trucks use.

I’m doing the aluminum swap since my 09 Esky AWD (Denali clone) has 185k miles on original suspension. It’s cheaper to buy new Suspension parts in Alum or Steel vs instal new bushings in the same susp parts.


IMG_2497.pngIMG_2421.png
 
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drummin1

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* All 07-14 Yuke Denali z55 (Autoride)
* Some 07-14 Burb, Tahoe Yuke equipped w/ optional z55 (AutoRide)
* All 07-08 Esky z55 (AutoRide)
* All 09-14 Esky z95 (MagRide)

* z55 systems have struts filled with hydraulic fluid and use same mechanical parts as z95 except strut and spring rate may differ. All have electrically actuated valving.

* z95 systems have struts filled with meteorological fluid (M/F) that cause cancer in laboratory rats in CA. They perform similarly to z55 except they also electrically charge the M/F to instantly change the viscosity of the damper fluid along with electronic valve control like z55.

Both have auto adjust rear air bags for height via a compressor. Both use a different control module. The control modules are not interchangeable for functionality. It has been attempted with a z55 module on z95 system. It did not ride well.

The z55 on Gen 2 and Gen 3 (07-14) with 17”-20” rims is one of the best rides for a full size SUV. z95 can be too harsh for 22” rims when suspension components wear like bushings & strut bearing.
Do you know of any direct part replacements for the Z55 Autoride front strut assemblies? Looking for the complete strut/coil unit..I’m not having much luck online, getting overwhelmed…….
 

petethepug

Michael
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Confused, so am I. Blame Arnott. They now spec out using the same z95 Mag filled strut for all z55 Hydraulic filled Autoride struts on the Denali & LTZ. Both use different controllers and valving.

Keep in mind some here have installed the Arnott z95 on their Denali and liked it …


Arnott’s catalog spec’g out z95 Mag struts for Non Mag vehicles…
IMG_2696.jpeg

So … for loaded (complete with spring) there’s Dorman. They also recommend mixing the two up.

Dorman …

IMG_2693.jpeg

There’s Arnott…

IMG_2697.jpeg

And there’s OEM z55 …

IMG_2694.jpeg

OEM orig lasted almost 15 years on our 08 Denali YXL. Without replacing the springs and replacing only the struts, it rode like a limo.

To do it over again I’d buy all the parts I listed on the excel spreadsheet in previous post and the lifetime guaranteed OEM a/c Delco z55 L/R struts inserts above, all from rock auto.

Take boxes to your favorite mechanic and have One & Done for 15 years and / guaranteed for life through R/A.
 

petethepug

Michael
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When I added up all the above parts on R/A site with the forums 5% discount and without tax or shipping it came to

IMG_2701.jpeg

for both sides for OEM or $518.11 per side for z55 autoride.
 

drummin1

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Confused, so am I. Blame Arnott. They now spec out using the same z95 Mag filled strut for all z55 Hydraulic filled Autoride struts on the Denali & LTZ. Both use different controllers and valving.

Keep in mind some here have installed the Arnott z95 on their Denali and liked it …


Arnott’s catalog spec’g out z95 Mag struts for Non Mag vehicles…
View attachment 446215

So … for loaded (complete with spring) there’s Dorman. They also recommend mixing the two up.

Dorman …

View attachment 446216

There’s Arnott…

View attachment 446217

And there’s OEM z55 …

View attachment 446218

OEM orig lasted almost 15 years on our 08 Denali YXL. Without replacing the springs and replacing only the struts, it rode like a limo.

To do it over again I’d buy all the parts I listed on the excel spreadsheet in previous post and the lifetime guaranteed OEM a/c Delco z55 L/R struts inserts above, all from rock auto.

Take boxes to your favorite mechanic and have One & Done for 15 years and / guaranteed for life through R/A.
Wait,so you’re saying the Arnott MR-3568 works w/ Z55?
 

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