Front didn't drop with lowering springs installed

[Max Rips]

Need your ideas guys on why could that be. I was running Steeda sport progressive springs with stock PP1 shocks. The drop was not enough for me so I purchased Vogtland springs with 1.5F/1.3R drop along with FP Track struts. Did the install yesterday and to my surprise, while rear 305/35's got nicely tucked, the front didn't drop at all. If anything, it got a hair higher. The only thing I can think of is the FP spring isolator that you put on top of the spring is thicker than the original PP1. Other than that I can't think of anything else. Would appreciate any input.

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[Siege]

Did you loosen and retighten the front control and radius arms to ensure the bushings aren't preloaded?

 

[Max Rips]

Did you loosen and retighten the front control and radius arms to ensure the bushings aren't preloaded?

I didn't. Do you think the bushings can really not let the car drop? Interesting. It has to be done when the car is on the ground right?

 

[Siege]

If you didn't do it when you installed the Steeda progressives either then I definitely think it's a possibility. Either way it should be done so the rubber bushings aren't preloaded.

Details here: https://www.mustang6g.com/forums/th...hose-bushings-after-lowering-your-s550.44129/

 

[NightmareMoon]

Yeah the bushings will resist ride height changes and hold the car up.

When I did springs, i drove the car for a few days before clocking the bushings and aligning it. I got exactly zero settle from driving for those three days after the initial install and the height wasn’t the advertised height until after the buahings were clocked. On my car it was more of an issue with the rear suspension but I know there are a few spots you need to clock in the front too.

 

[Max Rips]

Yeah the bushings will resist ride height changes and hold the car up.

When I did springs, i drove the car for a few days before clocking the bushings and aligning it. I got exactly zero settle from driving for those three days after the initial install and the height wasn’t the advertised height until after the buahings were clocked. On my car it was more of an issue with the rear suspension but I know there are a few spots you need to clock in the front too.

What was the advertised drop on your springs? Thinking maybe the lower springs you install the more impact on the height stressed bushings will have. I installed the rear subframe alignment and bushings kits and had to loosen the subframe and maybe that's why the rear dropped so good.

 

[NightmareMoon]

0.75” on my springs.

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