Body roll

[SnowBall]

Recently purchased 2017 Yukon Denali 4WD has excessive roll on corners. Seeking advice on if sway bars or shocks and struts should resolve this. It's been through a used car inspection at the dealer and they state everything looks great and that the suspension is aftermarket, which might explain the ride quality.

Looking for pointers on where to begin addressing this.

I found some sway bar info through Hellwig that state to address this type of issue.

Thanks folks

 

[B-train]

I would start with the aftermarket suspension. I have the same truck and it handles great on all driving and cornering.

 

[Thrust]

What is aftermarket on the suspension?
Sway bars are a world of difference when it comes to turns, especially the front sway bar. I just recently installed a Hellwig on the front and no more front push while turning into corners.
I already had a Hotchkiss sway bar on the rear, but that was a slight upgrade.

 

[Tonyv__]

Recently purchased 2017 Yukon Denali 4WD has excessive roll on corners. Seeking advice on if sway bars or shocks and struts should resolve this. It's been through a used car inspection at the dealer and they state everything looks great and that the suspension is aftermarket, which might explain the ride quality.

Looking for pointers on where to begin addressing this.

I found some sway bar info through Hellwig that state to address this type of issue.

Thanks folks

Plenty of positive feedback on Hellwig sway bars on this forum. I haven’t tried them myself but it’s on my eventually list

 

[CMoore711]

It's been through a used car inspection at the dealer and they state everything looks great and that the suspension is aftermarket, which might explain the ride quality.

If I were you I’d go back to the dealership that informed you that the current suspension is aftermarket and ask them to put it back up on the lift in their service bay and show you which parts/components of your suspension are aftermarket.

While under there you need to take pictures, especially if you can identify any brand name of parts with specific part numbers.

The statement of “aftermarket” from the dealer is a broad stroke. Could mean OEM replacement parts that just aren’t “GM” brand. Could mean an aftermarket performance part designed to perform differently than OEM or OEM replacements.

Regardless, if you’re going to head down the path of finding out why your vehicle is handling the way it is and work towards fixing or improving it your first step is identifying what exact “aftermarket” or otherwise suspension parts are currently installed on your vehicle.

 

[Joseph Garcia]

^^^^^x2^^^^^

There's an old saying that if you don't know where you are, you can't get to where you'd like to go.

Start with finding out what you've got for a suspension now.

IMO, the OEM suspension for your truck is a great suspension, so it would be great to know if you in fact have an OEM suspension, or if it has been modified. The OEM suspension is an active suspension, where the stiffness of each individual shock is adjusted automatically and continuously to match road and your driving conditions (like going around curves, applying the brakes, etc.).

Regarding sway bars, I'm sold on the Hellwig brand. They virtually eliminate body roll, and could be considered for your use, once your existing suspension is identified.

 

[SnowBall]

I would start with the aftermarket suspension. I have the same truck and it handles great on all driving and cornering.

Which brand did you go with?

 

[SnowBall]

Plenty of positive feedback on Hellwig sway bars on this forum. I haven’t tried them myself but it’s on my eventually list

Did you lower your Yukon and how did that impact handling?

 

[SnowBall]

If I were you I’d go back to the dealership that informed you that the current suspension is aftermarket and ask them to put it back up on the lift in their service bay and show you which parts/components of your suspension are aftermarket.

While under there you need to take pictures, especially if you can identify any brand name of parts with specific part numbers.

The statement of “aftermarket” from the dealer is a broad stroke. Could mean OEM replacement parts that just aren’t “GM” brand. Could mean an aftermarket performance part designed to perform differently than OEM or OEM replacements.

Regardless, if you’re going to head down the path of finding out why your vehicle is handling the way it is and work towards fixing or improving it your first step is identifying what exact “aftermarket” or otherwise suspension parts are currently installed on your vehicle.

Thanks, I'll get back in their shop for pictures and the details since they made that blanket statement. I think they said they couldn't make out the brand. Will see what I can get.

 

[Doubeleive]

Did you lower your Yukon and how did that impact handling?

as already stated, the first thing that should be done here is determine "what has been done already" as there could be all kinds of different things going on.
I would get under it and take pictures and post them up here, then we can better assist you.
take pictures of both front corners wheels turned out so we can see the control arms and coils/shocks then from under it so we can see the sway bar and end links.
rear take pictures of the axle, springs/shocks and sway bar best way is under it from the center of the axle looking at the backside of the wheel area
this will tell us a lot
then scan the QR code on the door/pillar and or glove box and screen shot the rpo code list

 

[SnowBall]

^^^^^x2^^^^^

There's an old saying that if you don't know where you are, you can't get to where you'd like to go.

Start with finding out what you've got for a suspension now.

IMO, the OEM suspension for your truck is a great suspension, so it would be great to know if you in fact have an OEM suspension, or if it has been modified. The OEM suspension is an active suspension, where the stiffness of each individual shock is adjusted automatically and continuously to match road and your driving conditions (like going around curves, applying the brakes, etc.).

Regarding sway bars, I'm sold on the Hellwig brand. They virtually eliminate body roll, and could be considered for your use, once your existing suspension is identified.

Yeah Joseph, I strongly believe the suspension can be improved not only from body roll but when I hit holes or go over speed bumps. I had a 2016 Ram Larime before this one with Bilstein shocks, HD springs on the rear, and Rough Country leveling springs up front. Stock sway bars and minimal body roll when cornering. I just knew the Yukon would be a more butter ride, which it is going straight and no bumps on the road. Primarily looking to make this vehicle as nimble as I can reasonably afford.

 

[SnowBall]

as already stated, the first thing thst should be doen here is determine "what has been done already" as there could be all kinds of different things going on.
I would get under it and take pictures and post them up here, then we can better assist you.
take pictures of both front corners wheels turned out so we can see the control arms and coils/shocks then from under it so we can see the sway bar and end links.
rear take pictures of the axle, springs/shocks and sway bar best way is under it from the center of the axle looking at the backside of the wheel area
this will tell us a lot
then scan the QR code on the door/pillar and or glove box and screen shot the rpo code list

Roger that!! Thanks Wes

 

[Doubeleive]

sheesh my typo's get worse all the time. ;p;

 

[B-train]

Which brand did you go with?

OEM stuff all around

 

[SnowBall]

Roger that!! Thanks Wes

Discovered that the aftermarket setup is by Arnott. Manufactured in 2022 however I don't know when they were installed. SK-3354
One site
Oreilly
I will get pictures of the control arms. What's the thought so far?

 

[Dirk13]

Arnott SK-3354 is aftermarket in a “non GM brand direct replacement” fashion and not a “performance” one. That particular model of Arnott is a PASSIVE replacement to the factory magnaride strut. This means it’s just a standard shock with a module on it to trick the vehicle’s computer into thinking a magnaride strut is connected and working so you don’t get error lights on the dash.

It’s the cheaper option at the dealer when the factory magnarides wear out. It essentially deletes that system. However, from what I read, they are a pretty decent quality strut.

What is on the rear?