Hey guys so I lowered my car with eibach prokit, KYB excel-g struts, and had my rack and pinion, inner and outer tie rods, sway bar end links, and compression rods replaced....

Now I'm noticing the car sits 1/2 inch lower on the drivers side back and 1/4 inch driver side front. I took it back to my suspension mechanic and he looked over everything a second time and it appears to be installed correctly. I found a couple threads that talk about this with a few users and even some 350 owners as well. What I'm wondering, is has anyone actually figured out why this is happening? What is the best permanent solution to this issue? It's seems strange that this would be somewhat common on a car that is engineered well and held a price tag of 35k plus! When brand new

Thanks everyone for the help!

 

If in fact your suspension mechanic knows what he's doing, discovering the cause/fix should have been his first priority. We can't tell what the issue is from here, find a new brake/alignment shop to check your suspension out. My guess is you'll find something that wasn't installed correctly...Gary

 

thanks Gary! I am going to have it checked because it just doesn't sound right to me that it would sit like that

here are some threads i found where people had the same issue, Let me know what you think!

https://g35driver.com/forums/g35-cou...han-other.html

And this one

http://my350z.com/forum/brakes-and-s...-side-wtf.html

and this one

http://teamsolcal.com/forum/showthread.php?tid=16625

 

Hey guys, so I swapped the springs from one side to the other and the result was that the drivers side is still sagging down.... I'm at a loss now of what it could be

 

Are you certain you don't have a rear spring installed in the front right and a front installed in the back left? That's what it sounds like, Maybe that or the shock is that way?

 

When I took the rear springs out yesterday they looked identical, so I can only assume that they are the right ones, like I said my mechanic did all the work and is very experienced, not saying mistakes don't happen but I'm sure he would notice, plus there is really only the issue in the back drivers side. I feel that the sag in just that corner affects the front slightly due to the car not sitting level. The drivers side rear is where the largest difference is in height... I'm at a loss, everything look in order and was installed perfectly. So now I'm unsure where to go to further diagnose...

 

Just verify the springs. Are they new or used? You may not even have right ones.

 

I have a feeling its a spring rate issue (They could look the same but have different spring constants).

 

Yea they are a set of eibach pro kit springs that were purchased brand new, and I thought the same thing about the spring rate but I swapped the tears from right to left and it still sits about 1/2 inch lower onThe drivers side