Rally Springs installation on a 2024 Premium AWD MME.

[HughJazzol]

I forgot to ask if a mod of springs and bars will affect the warranty coverage or the potential return of a lease.
They lift the car to fix something and see the red Eibach sway bars. Now what?

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[markboris]

I forgot to ask if a mod of springs and bars will affect the warranty coverage or the potential return of a lease.
They lift the car to fix something and see the red Eibach sway bars. Now what?

The only way it can affect the warranty is if the issues you are having with the car is directly related to either the springs or sway bars. I can't see how either one of those can cause a problem and I have been working on suspensions since the 70's. However, I am sure there is a dealer out there that will tell you your power seat is no longer under warranty because you replaced your springs.

As far as the lease goes, I would recommend only doing this if you plan on keeping the car after the lease but if not, they probably won't notice. You can't imagine all of the suspension and interior/exterior mods I did to both of my '21's and they were both turned in on the Ford Options Lease Plan without me changing anything but removing the subwoofer and floor mats. Most dealers are blind to this stuff. It is all up to you.

 

[ThunderClap]

Ford OEM Rally springs:
RK9Z-5310-A (Front) Approx $86 each
RK9Z-5560-B (Rear) Approx $ 89 each

Many places online you can purchase them at. I usually use https://www.tascaparts.com/

These are the Eibach sway bars:
https://eibach.com/product/E40-35-0...JPIpXc3eRqX4Nc-Eov94QXEzekn48c6-15OI9aDVfDhyc

Would a ford dealer install them or what's the cheap and best way to get them installed?

 

[markboris]

Would a ford dealer install them or what's the cheap and best way to get them installed?

I have read here where some dealers have installed them but I would probably try to find a suspension shop to do this.

 

[fjbbartow]

I have the front/rear sway bars installed along with the rear rally springs a couple of months ago. However, I am having an issue getting the correct front rally springs. Yes, the ride is better with just the rear springs and sway bars installed.

 

[dallowev]

Yes, ignore that they "will not fit" your car as they do and will fit EVERY Mach-E model.

The spacer is needed if you have RWD with extended range battery. If not, you don't need the spacer. I can send you a link to the spacer if you need one.

The rear springs all end in B now. A was the first version but they are no longer available.

I have 2023 RWD Extended Range so it sounds like I would need the spacer.
Do you mind sharing the link?

Thanks for all the details!

 

[markboris]

I have 2023 RWD Extended Range so it sounds like I would need the spacer.
Do you mind sharing the link?

Thanks for all the details!

https://www.steeda.com/steeda-s550-...T7guV0ioOM93oceN8L82i4Kp01DsXF2yXQl415qI4YDif

A lot of money for these aluminum spacers so if you find them cheaper somewhere else, go for it. Just make sure it is for a 2015+ Mustang.

And this is where they go. On top of the rubber insulator that is on top of the spring.

 

[PA Bob]

Yes, ignore that they "will not fit" your car as they do and will fit EVERY Mach-E model.

The spacer is needed if you have RWD with extended range battery. If not, you don't need the spacer. I can send you a link to the spacer if you need one.

The rear springs all end in B now. A was the first version but they are no longer available.

Hey Mark,

I have avidly followed these threads on springs, etc. I few replies back you said to Adam that the 1/4" spacer was to raise the rear on the STANDARD BATT. Hugh is talking EXTENDED BATT. Does he still need the spacer. I was paying close attn bc I also have premium RWD Std batt.

 

[KennyMc]

Hey Mark,

I have avidly followed these threads on springs, etc. I few replies back you said to Adam that the 1/4" spacer was to raise the rear on the STANDARD BATT. Hugh is talking EXTENDED BATT. Does he still need the spacer. I was paying close attn bc I also have premium RWD Std batt.

Mark installed the Rally springs and Eibach sway bars on my 2025 Premium RWD Std batt and we installed 1/4" spacers. The rear is 3/4" higher than the front which is pretty much how it came stock.

 

[KennyMc]

Mark is currently outta town so he won’t be able to chime in until early next week if anyone is looking for his guidance

 

[HughJazzol]

Hey Mark,

I have avidly followed these threads on springs, etc. I few replies back you said to Adam that the 1/4" spacer was to raise the rear on the STANDARD BATT. Hugh is talking EXTENDED BATT. Does he still need the spacer. I was paying close attn bc I also have premium RWD Std batt.

This is what he replied to me a page ago. I have rwd with a standard battery, there4, I DON'T need a spacer

The spacer is needed if you have RWD with extended range battery. If not, you don't need the spacer.

 

[markboris]

I have 2023 RWD Extended Range so it sounds like I would need the spacer.
Do you mind sharing the link?

Thanks for all the details!

https://www.steeda.com/steeda-s550-...T7guV0ioOM93oceN8L82i4Kp01DsXF2yXQl415qI4YDif

They are expensive for what they are. Maybe you can find some cheaper but they have to be for a 2015+ Mustang rear.

 

[markboris]

Mark is currently outta town so he won’t be able to chime in until early next week if anyone is looking for his guidance

Thanks Ken. Replying for a bit then will be back tomorrow night.

 

[markboris]

Hey Mark,

I have avidly followed these threads on springs, etc. I few replies back you said to Adam that the 1/4" spacer was to raise the rear on the STANDARD BATT. Hugh is talking EXTENDED BATT. Does he still need the spacer. I was paying close attn bc I also have premium RWD Std batt.

I don't remember telling Adam the spacer was needed on a standard battery. We did add spacers to Ken's standard battery RWD as from the factory his car was already 1" higher in the rear than front which is a little taller than Ford usually has for a rear rake. Maybe because it was a '25 and they changed the springs for the '25's. However, if the car is a '24 or older, the springs spacers are needed for a RWD, EX battery. Adam does not need spacers because his car is an AWD EX battery.

 

[PA Bob]

Mark installed the Rally springs and Eibach sway bars on my 2025 Premium RWD Std batt and we installed 1/4" spacers. The rear is 3/4" higher than the front which is pretty much how it came stock.

Forgive me if I'm not understanding. I don't know which is higher to begin with. But I thought these springs left the rear lower so the spacer was for the rear to raise it.

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