I am in the process of modifying a 2004 Limited Coupe. I have an SRT6 coupe parts car, and harvested the brakes and suspension from it. I purchased all new control arms, ball joints up front, and all new links and control arms for the rear from FCP, along with new Bilstein B6 shocks all around. Other than being a lot of work, the swap was very straightforward, with few gotchas along the way, save one. The rear of the car seems to sit the way I would expect, but the front end sits VERY high. Like 4x4 high. I did use the Limited's front spring upper isolators, as they were in better shape, along with the Limited's spindles. Looking at the isolators, I didn't notice any major height difference, but the car sits at least 1" too high, maybe closer to 1.5". Take a look at the before and after pics. Was there some difference in spring perch location on the 2004 vs the later years? I am missing something obvious, because nothing should be this far off. BTW, it drives fine, and it was aligned. I want to drop it back down, and then align again (I have a lifetime alignment on the car, so I can go back as often as I need to). Below is a pic of the car before I modified anything on it. As you can see, the ride height all looks normal.




But here you can see the front end ride height is way off.


I can fit my whole hand in there, so there is about 4" of clearance!


The rear seems much more reasonable, and seems to be about the same as another 04 Limited we own.


I can see that there are several different spring isolators listed (Part #16), but the parts catalog doesn't seem to show what is for what. Unsure what the N=1, 2, 3, 4, 5 is about.



BTW, I do realize that the the SRT6's engine and associated parts would naturally be heavier than the Limited's, and therefore the Limited would sit higher than the SRT6, due to a weight difference. However, this far exceeds what 50-100# difference would do. Something else is off.

 

....and perhaps the isolators are at least part of the answer. Check out this same page in the parts manual, but from the 2004 MY. Explains what the N=x means, I'd say. Time to dig back into the thing, I'd say.

 

In 2006, there was but one choice for the EGZ (supercharged) engine. That part number traces back to being N=2, or 9mm. Actually, there is no listing for the NA engine, but that is obviously an error. There are numerous errors in the ZH parts catalogs, compared to pretty well all other Chrysler models.

 

Nice look
If you want a truck

Reach out to Rob at needswings for a new shocks/springs suspension setup

youl be glad you did

 

I put the car up in the air, and took the front springs out. Sure enough, the Limited's spring isolators were the N=3 or 13mm type. The SRT6's isolators were N=2, or 9mm. I replaced with the SRT6's. In addition, both front springs were "clocked" and not fully seated in the isolators. Correcting both of these items lowered the front end by well over an inch! We're still a bit high in the front end, but no where even close to as bad. I will post updated pics tomorrow.

 

Give it a little more time and it will sink a bit lower.

 

I am hoping that you are right, and that everything will settle out over time.

 

If you need it lower use thinner upper spring isolators (#16), as you found,
The springs are "clocked", spring to isolators, but that isolator is free to be in any position (rotation) in the upper cup on the frame.
The lower end of the spring is also clocked to where it sits in the lower control arm and can be in only one position to sit at correct ride height.
The parts graphic shows an isolator for the lower end of the spring (#14) that looks simply like a pad for NVH. My car did not have those when I had to replace the broken stock springs.

 

Mine did not have the lower isolators either - neither on the limited not the SRT6. I do not believe either had ever been taken apart, so as to remove them. The car sits about 3/4" too high, IMO. I do know the supercharged engine and supporting equipment will be heavier than the NA setup, but I have not found out how much of a difference it is. I out a 100# weight on the front of the car, and it pulled it down a bit, but still not enough. I have a very large round of changes coming for under the hood. It will be a bit heavier at the nose (I am predicting about 100-125# heavier). I will likely cut part of the bottom coil of each front spring to get ride height where I want it. 1/2 coil off should shorten it, with the associated increase in spring rate. I'll do the math on it, once I get to a final configuration.

 

Do yourself a huge favour
contact Rob at Needswings for a set of coil overs
yes they are a few bucks but they are adjustable and will give you the ride you are after

Real deal, these work, no bull. I and many others have ordered and installed them. If you have a special requirement, he’ll be able to accommodate it. I spun mine right to the lowest point and had to bring the car back up because I was rubbing inside the wheel wells and scraping on every speed bump

The range of adjustment is really impressive. You’ll spend more in time adjusting what you have than you will have to spend for a complete setup.

https://needswings.com/suspension-xf

 

I have considered coilovers. I have KW Variant 2s on my other cars, with great results. However, I wanted a firm but smooth ride that the stock type suspension would offer. The other cars do handle well, and the ride is not ridiculous, but it's not OEM, either. Secondly, I did just spend the money on what I have, so I'd like to have a chance to work with it for a bit .

If I build another car, more performance centric, I will likely look more in to a coilovers setup, with more aggressive bushings and sways.