Front coil spring

[DD0621]

I have 2011 Yukon Denali that I just lowered with spindles and the front strut, but not the whole assembly. So I still have the stock auto ride spring. I want to get a stiffer spring to get rid of the bounce of the front. Can anyone recommend a good spring that will get rid of this bounce? Another question at 60-75 on the freeway there is so much shacking that it is unsafe to drive it at that speed. I had the front end aligned and its all good there now. Will a stiffer spring help that or should I look and doing a new sway bar or is there something else that will help with this? TIA

 

[mountie]

I have 2011 Yukon Denali that I just lowered with spindles and the front strut, but not the whole assembly. So I still have the stock auto ride spring. I want to get a stiffer spring to get rid of the bounce of the front. Can anyone recommend a good spring that will get rid of this bounce? Another question at 60-75 on the freeway there is so much shacking that it is unsafe to drive it at that speed. I had the front end aligned and its all good there now. Will a stiffer spring help that or should I look and doing a new sway bar or is there something else that will help with this? TIA

The bounce is usually due to a weak shock absorber .. (?) Maybe the shocks / springs are not matched ?

 

[DD0621]

The bounce is usually due to a weak shock absorber .. (?) Maybe the shocks / springs are not matched ?This is the

This is the kit I did. MaxTrac KS331234S Lowering Kit 3 in. Front Drop 4 in. Rear Drop Incl. Front Lowering Spindles Adjustable Lowering Struts Rear Lowering Coils Shock Extenders Sensor Rods Lowering Kit​

It came with new front shocks. Maybe I need to look at a different brand. I would guess the spring rate for the stock auto ride spring would be different than a non auto ride spring.

 

[mountie]

Someone can correct me, but some factory 'auto ride' , 'air adjust', manual auto level ( Nivomats / Sachs) shocks require a softer spring, since the shocks add SUPPORT to the suspension, so those coil springs are softer ) ... Check your RPO codes )

 

[DD0621]

Someone can correct me, but some factory 'auto ride' , 'air adjust', manual auto level ( Nivomats / Sachs) shocks require a softer spring, since the shocks add SUPPORT to the suspension, so those coil springs are softer ) ... Check your RPO codes )

That is what I have heard, but have not seen what people are replacing the springs with. I have been looking at possibly ordering 1500 truck springs to see if they will fit. I have tried inputting the vehicle into numerous sites without air ride option just to see if I can find a spring that would fit the strut tower without having to replace the whole tower. I know there are a lot of options for the whole tower but don't want to go that route since I already have a new shock.

 

[mountie]

That is what I have heard, but have not seen what people are replacing the springs with. I have been looking at possibly ordering 1500 truck springs to see if they will fit. I have tried inputting the vehicle into numerous sites without air ride option just to see if I can find a spring that would fit the strut tower without having to replace the whole tower. I know there are a lot of options for the whole tower but don't want to go that route since I already have a new shock.

Do what I did..... 1st, I found the original sticker - part # attached to my coil springs... Go to your GM dealer with your VIN# and they can show what you should have as stock..... and maybe find a spring for your model, but with the standard coil, and compare that to the coils you have to match with your shock. I found, most shock absorber sellers actually don't have a clue what spring should match the shock you are looking at to buy. ( Don't be fooled by a 'neat looking' website....)
A good looking shock seller brags how a 'performance' shock they sell is great for a rough road or for off-road.... REALLY ??? I drive a *****'n Yukon XL.... Not a Hummer !!

 

[mountie]

Do what I did..... 1st, I found the original sticker - part # attached to my coil springs... Go to your GM dealer with your VIN# and they can show what you should have as stock..... and maybe find a spring for your model, but with the standard coil, and compare that to the coils you have to match with your shock. I found, most shock absorber sellers actually don't have a clue what spring should match the shock you are looking at to buy. ( Don't be fooled by a 'neat looking' website....)
A good looking shock seller brags how a 'performance' shock they sell is great for a rough road or for off-road.... REALLY ??? I drive a *****'n Yukon XL.... Not a Hummer !!

 

[Joseph Garcia]

Spring change for active suspensions (Z55 or Z95) versus passive suspensions is for the rear springs only, as I understand it.

As @mountie stated above, bouncing is typically shock related and not spring related.

 

[mountie]

Spring change for active suspensions (Z55 or Z95) versus passive suspensions is for the rear springs only, as I understand it.

As @mountie stated above, bouncing is typically shock related and not spring related.

A few weeks ago, I was driving on the freeway, going about 75 mph ( cruising north from Fort Lauderdale).... A late model Escalade was 'cruising' in the center lane.... The front end was bouncing up and down, on the smooth road.... I wonder what caused that???

 

[Joseph Garcia]

A few weeks ago, I was driving on the freeway, going about 75 mph ( cruising north from Fort Lauderdale).... A late model Escalade was 'cruising' in the center lane.... The front end was bouncing up and down, on the smooth road.... I wonder what caused that???

Totally blown front shocks, IMO.