Arnott MR4262 for replacing front Magneride Z95 suspension info

[mrkev]

Just put in the Arnott MR4262 suspension for my fronts.
I'll post some info, for those deciding to use Arnott, ACdelco, or others.
I went with the MR4262 because I thought it was an Eibach shock and spring with magneride fluid inside. Well, im not sure if it's eibach, I dont see "Eibach" anywhere on the spring or shock. I was debating to get just the shock and re-use the spring to save about 200$ total for the pair. I am glad i did NOT. After installing the Arnotts, my front end was lifted about 2 inches. I think the old suspension has sagged overtime, and since im not the oG owner, I have no idea of how high the front was brand new.

The newly installed Arnot was squeeky for the frist few speedbumps, but now and quiet and smooth. Also did the trim height adjustment on the Autel, since the ride in the front is 2 inches higher now (although it did not throw any codes). Let's see if this settles over time.

My recommendation is to use Arnott with the spring installed, since your old springs have probably already sagged. With the spring already installed, installation is very easy. AC delco does not sell pre-loaded Magneride shocks/springs.
Dont buy AC delco from Ebay, they are cheaper, but they are 99% fakes. (I wouldn't buy from amazon either for the same reason)
NOTE: there are 4 versions of Arnotts offered.
1. Magneride shock only
2. Magneride shock only (but passive, so it bypasses the magneride)
3. Magneride shock and spring* this is what I got because I wanted to keep the magneride functionality.
4. Magneride shock and spring (but passive)

of course you can bypass it altogether and get FOX or Billies. lots of info out there or Mag Del. If the Arnotts fail, I'll give Fox a try.

Hope this can help others.

 

[Joseph Garcia]

Welcome to the Forum from NH.

Lots of knowledgeable folks here who freely share their knowledge, experiences, and perspectives. Knowledge is power.

I hope that you will become a participating member in the Forum's discussions.

Pics of the truck, please.

Thank you for posting the details and assessment of your shocks changeover. Our collective knowledge base has been increased.

 

[mrkev]

Welcome to the Forum from NH.

Lots of knowledgeable folks here who freely share their knowledge, experiences, and perspectives. Knowledge is power.

I hope that you will become a participating member in the Forum's discussions.

Pics of the truck, please.

Thank you for posting the details and assessment of your shocks changeover. Our collective knowledge base has been increased.

Thank you! Here's the pic of the truck 1000 miles after the Arnott front Shock and Springs.

 

[mrkev]

update after a 700mile road trip. I would give these Arnott's a 9/10. I have 2 issues with this systems.
The first... the fronts sometimes make a squeaking noise when going over speed bumps too fast.
The Second... When going over a small hump at high speeds, it feels like the whole car got some air. What I mean is that the suspension seems to fully extend for a second before compressing. I dont remember my old shocks doing this (even though they were leaking and sagged about 2 inches.)
overall, the road trip was smooth. I did drive a 2024 Wagoneer during this trip and the Wagoneer is waaaay more quieter and smoother than my 2016 Yukon. I did notice that it had considerable more body roll than my Yukon. My yukon was planted during turns. I am happy with that.

 

[mrkev]

further update with a few hundred more miles and different types of roads. I think the fact the suspension was lifted 2 inches means the suspension is stiffer.

In my other cars (stock suspension) going over a hump at a high speed, the car suspension would extend then land softly.

With my yukonXL and Artnott Active spring/shocks, going over same humps at high speeds (40-55 mps) it feels like the car gets some air. The suspension seems like it gets extended to the max before it compresses, you can definelty feel the jolt. It feels like the stiffer sport suspensions of my coilovers on other cars.

being that i've only had experience with my Yukon with stock blown/sagging shocks and springs, I dont have much to compare it to. I did rent a Wagoneer during the same 700 road trip, and wow, that suspension was smooth. more body roll, but very smooth over bumps and humps.

I guess that's the tradeoff with Magneride and having good handling.

Anyone else with Stock Magneride chime in? How does your car do when flying over humps at about 40-50mph?

thanks

 

[GMCMAX12]

subd

 

[mrkev]

With more miles on the Arnott, I have more feedback. Even though I dont have another Yukon to compare, I dont remember the suspension being harsh on small bumps. for example, going over bumps at low speeds is super harsh. I honestly think this is because the lift that the arnotts offer. With my old suspension, there was about 1.5 inch less preload. That's why it sat 1.5 inches lower.
if i were to do it again, i might just get the shocks, and keep the old softer OEM springs. I'm just not sure how much they have sagged since 2016, but I remember they were super smooth (even with leaking shocks up front)

 

[mrkev]

After a few thousand miles, I cant help but to think the ride is not as soft as it was before. It could be in my head, im not sure, but I am very close to swapping out for my stock springs. It could very well be once I swap in the OEM springs, it rides exactly the same haha. If anyone wants to trade for a stock shock that's OEM, I would trade them. My arnotts are pre-loaded with springs.

 

[Carfan]

My 2020 will be 5 years old in August. Some time after Christmas I noticed that ride was harsher. There's no leaks in the garage however.

I took it to the dealer and they said the rear struts were failing. I ordered the Strutmasters rear magneride kit and had them installed a couple weeks ago.

The ride improvement is night and day. Since I have the 22 inch wheels there was always some extra firmness while driving. But now there's no harshness.

I'm planning to hold off as long as possible on the front strut replacements.

But I can attest that getting the rears replaced has been quite noticeable and the ride has definitely improved.

 

[mrkev]

My 2020 will be 5 years old in August. Some time after Christmas I noticed that ride was harsher. There's no leaks in the garage however.

I took it to the dealer and they said the rear struts were failing. I ordered the Strutmasters rear magneride kit and had them installed a couple weeks ago.

The ride improvement is night and day. Since I have the 22 inch wheels there was always some extra firmness while driving. But now there's no harshness.

I'm planning to hold off as long as possible on the front strut replacements.

But I can attest that getting the rears replaced has been quite noticeable and the ride has definitely improved.

Thanks for the input. I havent really heard anything bad about strutmasters. I dont have any reference on how the OEM feels since I purchased this car with 140k miles and replaced the fronts because the passenger side only was leaking. The rears are squeaking over speed bumps, but the rears ride just fine now. will eventually need to do the rears. I may go with strutmasters since you are saying they are as good as they came from the factory.

actually the Arnotts seem OK. I just dont like the spring that came with it. Going over a hump on the road at 30-40, the suspension does become fully extended. I think it should float over humps.

How does your gmc feel going over humps? Do you ever get the sense that the suspension became fully unloaded (ie fully extended)?