'15 Tahoe LTZ - suspension - all four corners bad?

Well Monroe support was less than helpful. They essentially refused to offer help or support because the strut is "not designed to replace magnetic ride suspension."

Threads on other message boards suggest that the struts will settle after 500-1000 miles. However, in those posts I never saw the original poster following up that they had settled.

Also a good many reviews on Amazon that mention the same issue. Amazon return window closes on January 31, so I have a little time to look for alternatives if I decide to do that. Embarking on about a 500 mile trip today so we'll see if anything changes.

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Dont plan on them settling much more than a half inch or so. Probably not even that much.

dumb question, but are they adjustable?

olyelr said:

dumb question, but are they adjustable?

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No they're not adjustable. However I have thought about swapping out the coils with the old ones I took out, but I don't know if I'm up for that job. I had to compress one of the coils to get the upper mounting plate rotated, and I was scared the compressor was gonna break and kill me.


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bdbull said:

No they're not adjustable. However I have thought about swapping out the coils with the old ones I took out, but I don't know if I'm up for that job. I had to compress one of the coils to get the upper mounting plate rotated, and I was scared the compressor was gonna break and kill me.


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Click to expand...

Hahahah, yea I just did the same thing with the fox coilovers i installed on my wifes denali. Had to take one completely apart. Sketchy to say the least. The second one wasnt quite so scary feeling lol.

Gonna tighten everything down again and check the measurements. If the wife is still unhappy with it, I might think about getting a set of Bilstein 4600's and putting the factory springs on them and returning the Monroe's back to Amazon. Anyone run the 4600's on the front?

bdbull said:

Gonna tighten everything down again and check the measurements. If the wife is still unhappy with it, I might think about getting a set of Bilstein 4600's and putting the factory springs on them and returning the Monroe's back to Amazon. Anyone run the 4600's on the front?

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You might want to double check the size of the Bilstein's top mount piece.
From what I was told, the Tahoe's top plate takes a larger size than what Bilstein has produced. The example below shows why the Bilstein B8 6112 kit will NOT work with our MRC front suspension being reconstructed. Hence -> complete front strut assembly solutions...
FYI - the Fox 2.0 can be adjusted down to 0" from the preset +2" out of the factory.

Oh Kee Pah said:

You might want to double check the size of the Bilstein's top mount piece.
From what I was told, the Tahoe's top plate takes a larger size than what Bilstein has produced. The example below shows why the Bilstein B8 6112 kit will NOT work with our MRC front suspension being reconstructed. Hence -> complete front strut assembly solutions...
FYI - the Fox 2.0 can be adjusted down to 0" from the preset +2" out of the factory.

Click to expand...

As of right now, I'm just gonna stick with what I have. I started thinking about it more, and I don't want to drop the frontend down 3 inches, which is what the OEM springs would do. And then when I look at other springs, I have no idea how tall they would be. For instance, I started to look at the springs in some of the lowering kits. But then the question becomes: are they x inches lower than my OEM springs or the Monroe springs? It seems like a big trial and error game that I really don't feel like playing. So as of right now, just gonna stick with the Monroe's.

Well, I took a shot and bought some AC Delco struts to see if I could just replace the struts and reuse the OEM springs. Took the old shock apart today, went to put the new strut in, and it didn't fit. The rod that goes up through the mounting plate was too thick. The threaded portion of the rod fit through the hole, but then it got thicker and wouldn't fit. So, I think my next option is to try some 2" spacers in the back and see what that looks like. Anyone put spacers in the back of an LTZ?

bdbull said:

Well, I took a shot and bought some AC Delco struts to see if I could just replace the struts and reuse the OEM springs. Took the old shock apart today, went to put the new strut in, and it didn't fit. The rod that goes up through the mounting plate was too thick. The threaded portion of the rod fit through the hole, but then it got thicker and wouldn't fit. So, I think my next option is to try some 2" spacers in the back and see what that looks like. Anyone put spacers in the back of an LTZ?

Click to expand...

I'm running 1" coil spacer in the rear of my 2015 LTZ w/ Bilstein B8 5100 series (0-1" lift).
I have McBay Performance rear spacers. I think they are great and also the company will make you the exact size you want (if desired). https://mcbayperformance.com/

My Tahoe's MRC is deleted by Xineering's GM Shock Sim sensors.
I would assume a larger spacer would be no problem, as long as you have dealt with the MRC somehow. Fox has a rear shock made for 0-2" lift. I think BDS Suspension also sells their rear shocks online made for 0-2/2-4/4-6" lifts...

Oh Kee Pah said:

I'm running 1" coil spacer in the rear of my 2015 LTZ w/ Bilstein B8 5100 series (0-1" lift).
I have McBay Performance rear spacers. I think they are great and also the company will make you the exact size you want (if desired). https://mcbayperformance.com/

My Tahoe's MRC is deleted by Xineering's GM Shock Sim sensors.
I would assume a larger spacer would be no problem, as long as you have dealt with the MRC somehow. Fox has a rear shock made for 0-2" lift. I think BDS Suspension also sells their rear shocks online made for 0-2/2-4/4-6" lifts...

Click to expand...

Well, I'm gonna try one more model of front struts before I go with the spacers.

I've already dealt with the MRC with Xineering's kit too. Now just looking to get the ride height correct.

Thanks for the recommendation of BDS. They make a rear shock for 0-3" lift so if I end up going with the spacers I'll probably order new rear shocks from them. Looks to be decent quality and not that expensive either. Will definitely be an option when I end up dealing with the MRC on my Avalanche also.