Progressive springs

[tommyd]

Hi all. I'm looking to improve the overall ride on my 2024 gt. Nothing dramatic, just need a little help with cornering and if at all possible, less of a jolt over potholes. STEEDA rep said that the progressive springs should do the trick. Can anyone attest to this? If they are not going to make much of a difference, I'll save my money. Thanks.

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[Fusion Training Systems]

I just recently switched from the progressive springs to Steeda’s minimum drop springs and couldn’t be happier.

For me the progressives lowered my car too much and ride quality wasn’t where I liked it.

But I know a lot of guys who really like the progressives and swear by them:

I think it comes down to also what your goals are with your car then that’ll help you to decide which springs to go with.

 

[tommyd]

Hi. The bottom line is I want a smoother ride. I became accustom to the ride quality of the magnaride on my 21 EcoBoost hpp. I don't expect to replicate that ride, but a little less jarring over bad roads would be great. Steeda didn't recommend changing the shocks, only the springs.

 

[John S]

Suspension tuning is complicated but you could maintain a reasonabley comfortable ride by matching spring rates to your OEM specs and choose whatever ride height you prefer by the "lowering" spec advertised by the aftermarket springs. If you just want improved cornering, larger diameter anti-sway bars will give the best bang for the buck. I just removed this set of "progressive" Steeda springs from my son't GT and the lowered stance was just right for his liking. My Mach 1 HP springs are slightly lower than the GT and the higher spring rate is still comfortable. Just understand that cold wound suspension springs are made from chrome silicon/vanadium wire and there is high residule stress that needs corrosion protection for OEM level fatigue life. I've had many years experience in the spring industry and I couldn't let my son continue to daily his lowered GT on Steeda's springs with such severe corrosion on the rear springs. (Steeda doesn't warranty corrosion.) If you decide to replace springs, stick with OEM or and actual manufacturer, like Eibach, that understands how critical coatings are and will stand behing their quality. (Ford even addresses this concern in their shop manual buy instructing technicians not to damage the spring coatings when they compress them or service them.) Good luck with your project.

 

[Mustang Maverick]

Steeda Progressives and the Pro Active Dampers work well together.
But I don't see those for the 24/25s, so may still be developing.
But the Pro Actions at available for the 24/25s.

The front springs drop the front stance 1 & 1/8 inch - so it makes the stance front to rear more even.
The rears are 1 inch drop.

If the height is too low Steeda sells a front spacer kit which brings the front up in 1/8 increments with a total height adjustment of 1/2 inch with all 4 spacers installed.
And they a set special for use with the camber plates.

The rear spacer is just a metal ring that sits on top of the spring mounts and they have 1/8, 1/4, and 3/8 sizes.
The rear spacers will change the stance by double the spacer size - so a 1/8 spacer will increase the height 1/4 inch; the 1/4 will increase 1/2 inch; and the 3/8 will increase 3/4 inch.

Links
https://www.steeda.com/steeda-mustang-progressive-sport-lowering-springs_555-8210
https://www.steeda.com/steeda-555-8254-s550-front-ride-height-spacer-kit
https://www.steeda.com/steeda-s550-mustang-billet-rear-spring-spacer-3-8-inch-555-8250.html

 

[tj@steeda]

Hi. The bottom line is I want a smoother ride. I became accustom to the ride quality of the magnaride on my 21 EcoBoost hpp. I don't expect to replicate that ride, but a little less jarring over bad roads would be great. Steeda didn't recommend changing the shocks, only the springs.

It is not necessary to change the shocks & struts - it will give you an even better ride quality over stock but the Progressive Springs are our best-selling springs for what you are describing - ride quality. As the other poster mentioned - the minimum drop springs are solid too.

 

[tj@steeda]

Suspension tuning is complicated but you could maintain a reasonabley comfortable ride by matching spring rates to your OEM specs and choose whatever ride height you prefer by the "lowering" spec advertised by the aftermarket springs. If you just want improved cornering, larger diameter anti-sway bars will give the best bang for the buck. I just removed this set of "progressive" Steeda springs from my son't GT and the lowered stance was just right for his liking. My Mach 1 HP springs are slightly lower than the GT and the higher spring rate is still comfortable. Just understand that cold wound suspension springs are made from chrome silicon/vanadium wire and there is high residule stress that needs corrosion protection for OEM level fatigue life. I've had many years experience in the spring industry and I couldn't let my son continue to daily his lowered GT on Steeda's springs with such severe corrosion on the rear springs. (Steeda doesn't warranty corrosion.) If you decide to replace springs, stick with OEM or and actual manufacturer, like Eibach, that understands how critical coatings are and will stand behing their quality. (Ford even addresses this concern in their shop manual buy instructing technicians not to damage the spring coatings when they compress them or service them.) Good luck with your project.

Our springs are custom-designed to our specifications by one of the leading spring manufacturers in the industry.

Living in Michigan, I understand firsthand how the salt and other materials used on the roads can damage car parts, not just the spring coating. I’ve lived south of you and have had to deal with the frustration of replacing parts and dealing with rusty underbodies. Unless you're storing your vehicle for the winter or washing it regularly, it's almost impossible to prevent the effects of road salt in Michigan.

 

[tommyd]

Thanks for the responses. I've ordered the progressive springs from Steeda, so I'll report back after I install them.

 

[NightmareMoon]

Thanks for the responses. I've ordered the progressive springs from Steeda, so I'll report back after I install them.

Please do, because I dont see any way that lowering the car on rogressives is going to improve the ride quality.

Suspension needs to move to absorb bumps so lowering as much as those springs do is removing its one best tool to absorb bumps. Im truly mystified.

it will look great, but the ride? No way its more compliant over anything but the flattest pavement.

 

[SteedaTech]

Make sure you trim the front and rear bump stops, for additional suspension travel!

Thank you,

Steeda Tech

 

[MattScopes]

Steeda Progressives and the Pro Active Dampers work well together.
But I don't see those for the 24/25s, so may still be developing.
But the Pro Actions at available for the 24/25s.

The front springs drop the front stance 1 & 1/8 inch - so it makes the stance front to rear more even.
The rears are 1 inch drop.

If the height is too low Steeda sells a front spacer kit which brings the front up in 1/8 increments with a total height adjustment of 1/2 inch with all 4 spacers installed.
And they a set special for use with the camber plates.

The rear spacer is just a metal ring that sits on top of the spring mounts and they have 1/8, 1/4, and 3/8 sizes.
The rear spacers will change the stance by double the spacer size - so a 1/8 spacer will increase the height 1/4 inch; the 1/4 will increase 1/2 inch; and the 3/8 will increase 3/4 inch.

Links
https://www.steeda.com/steeda-mustang-progressive-sport-lowering-springs_555-8210
https://www.steeda.com/steeda-555-8254-s550-front-ride-height-spacer-kit
https://www.steeda.com/steeda-s550-mustang-billet-rear-spring-spacer-3-8-inch-555-8250.html

Are you running the actives? Seems like a lot of people have issues with the on here.

 

[tj@steeda]

Are you running the actives? Seems like a lot of people have issues with the on here.

Hello Matt, there are isolated cases where the actives don't pair well with a particular spring; the Progressives have a spring they pair with & should not cause issues. Plenty of customers are running our Steeda Pro-Actives without issue & as Steeda Tech mentioned, there are a couple of different items to look at when installing these particular springs.

If there are any questions as to what combos are the best for your S550:

 

[MattScopes]

Hello Matt, there are isolated cases where the actives don't pair well with a particular spring; the Progressives have a spring they pair with & should not cause issues. Plenty of customers are running our Steeda Pro-Actives without issue & as Steeda Tech mentioned, there are a couple of different items to look at when installing these particular springs.

If there are any questions as to what combos are the best for your S550:

gotcha, yea that seems to be the case for a lot of the issues I’ve seen (steeda and koni version). Where people will test out springs that aren’t listed as compatible, and run into issues. Seems the actives might be a little more picky when it comes to spring choice than a typical shock/strut, so I guess its best to stick with whats confirmed to be compatible.

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