Driver side sagging down - 6MT.net Infiniti G35/G37/GTR Forums
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post #1 of 47 Old 04-15-2014, 08:56 AM Thread Starter
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Default Driver side sagging down

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!
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post #2 of 47 Old 04-15-2014, 12:12 PM
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Quote:
Originally Posted by Willmkent View Post
.....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!
Why are you blaming the car when it was the installation of an after market kit which started the problem?
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post #3 of 47 Old 04-15-2014, 01:47 PM
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It's probably the springs. It happened with my S-Techs. That's why I went with coilovers.

Try swapping the rear springs and see what happens. The rear springs are easy to swap.

'06 Autumn Copper FX35, '11 Alpine White Sentra & 2016 Red Hot Camaro 2SS
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post #4 of 47 Old 04-15-2014, 11:05 PM Thread Starter
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Well I'm. It blaming the car, however I have been reading several things saying that the "the car is built like that" that is where I disagree, I feel like it is most likely the spring that is bad, on Thursday I am going to swap the springs and see what my findings are,

Is a spring compressor required for the springs in the rear in order to remove and replace ???
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post #5 of 47 Old 04-15-2014, 11:13 PM
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No, you do not need a spring compressor to move the rear springs around. Unbolt the spring bucket and pull it down to release the spring.

'06 Autumn Copper FX35, '11 Alpine White Sentra & 2016 Red Hot Camaro 2SS
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post #6 of 47 Old 04-17-2014, 09:05 AM Thread Starter
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Thanks guys, I will be trying this today and report back with my findings
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post #7 of 47 Old 04-18-2014, 07:37 AM Thread Starter
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So I made the swap amd the car still sits lower on the drivers side, I inspected the springs and found nothing wrong with them at all
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post #8 of 47 Old 04-18-2014, 12:39 PM
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Buy a clamp and compress a few spring coils on the other side !!

-- or set a bag of concrete mix in the corner of the trunk.

'04 G35 6MT, DG Coupe, Prem/Nav, purchased 06/2011 @97k mi / 119,650 as of 07.06.16
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post #9 of 47 Old 04-18-2014, 05:00 PM
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post #10 of 47 Old 04-18-2014, 06:05 PM
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I'm a big fan of using $300 worth of tape and rope to fix somthing rather than do it right.

It turns a simple fix into an event.

'04 G35 6MT, DG Coupe, Prem/Nav, purchased 06/2011 @97k mi / 119,650 as of 07.06.16
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post #11 of 47 Old 04-18-2014, 11:29 PM Thread Starter
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I'm actually really lost guys, I wish this was more cut and dry, but I'm not entirely sure how to further diagnose, everything visually appears to be correct, has anyone else this issue or heard of this happening ?
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post #12 of 47 Old 04-18-2014, 11:44 PM
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Quote:
Originally Posted by Willmkent View Post
.... Now I'm noticing the car sits 1/2 inch lower on the drivers side back and 1/4 inch driver side front.

- I don't know anything about this stuff but I'm thinking the statement above may mean the car sitting 1/2 low in back might just cause the front to compensate by sitting lower as a result ie; it's not an issue with the front suspension. Maybe that's nothing new to anyone/other's that know more about this stuff.

- I assume in your orig post, you mean to say the car never had a sag with
the stock suspension... ? = This is a new problem that followed new parts.

- I'm not sure how you go back to 'reset' but it would be nice to either confirm the compression rate or strentgh of the springs are equal (not a defect or an improper heat-treatment or whatever the process)
OR
get a company rep to follow up on it and see if they will support their products / questions / problems after they sell them.

'04 G35 6MT, DG Coupe, Prem/Nav, purchased 06/2011 @97k mi / 119,650 as of 07.06.16
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post #13 of 47 Old 04-19-2014, 09:57 AM Thread Starter
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Yea, at this point that is probably all I can do, I switched the rear springs from the drivers side to the passenger side to see if it would isolate the spring as the issue but I got the same result. One thing that bothers me quite a bit is the fact they I have read many threads where people have had an issue similar to this but no one ever came up with an answer....

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

http://g35driver.com/forums/g35-coup...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
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post #14 of 47 Old 04-19-2014, 10:22 AM
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On the teamsocal one guy does some spirited driving on twisty roads, one mentions checking sag on sutfaces you know are level and others say they make need to break-in after a while.

Yeah, g35driver sez it's happening all the time to almost everyone. Fk sakes, how can any company have these results so widespread and

A) Still have customers

B) Not be adding tech support or customer f/u to help diagnose?

'04 G35 6MT, DG Coupe, Prem/Nav, purchased 06/2011 @97k mi / 119,650 as of 07.06.16

Last edited by bachman; 04-19-2014 at 10:34 AM.
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post #15 of 47 Old 04-19-2014, 11:23 AM Thread Starter
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Yea that's one things that's really throwing me off, I took the car about I to a large empty parking lot and held some turns down to try to settle the springs down a bit but it's still very low in that rear.

I completely agree with you on all 3 other corners being fine, you're right, the sag from the rear drivers side is most likely pulling down the front side a slight amount. I haven't tried calling eibach yet because changing the springs from right to left didn't make any difference, but also, I feel like the spring truly sets the ride hight in the car and with all specs being on with the alignment, there shouldn't be an issue. This is really mind boggling and bothersom. Could it be a bent away bar somehow that I am just not noticing?
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