JDawg

Hey guys!

I have a 2006 C6 and installed some Bilstein shocks, front and rear. I noticed after installing them, when I back up in my driveway, the little black flap underneath, not sure what it is called, but didn't scrub anymore. Now I noticed that it is scrubbing again and it appears the left front wheel well area is about a 1/2 " lower than the right, the right side seems to be the correct height. I started noticing this after new tires were installed and alignment was performed, but just thought it was due to the different tires I purchased, Michelin. Is there some type of coil spring that could be weak? Is there an adjustment in the alignment that could have changed the height? Could the new shock have gone bad? I know there could be a lot of scenarios, but was wondering if anyone else has ran into this, because I really don't want to go to the dealership to have it looked at.

Thanks in advance!!

JDawg

ttx350z

JDawg

Hey, I appreciate your reply. Yeah, I was aware it didn't have coil springs, just wasn't sure if it had some other type springs that would have gone bad.

I have measured at the front tires on each side from the ground to the fender edge above the wheel and the left side is a noticeable difference even by eyeballing it. If it is simple to adjust the ride height, I sure would like to know! Thanks!!

ttx350z

JDawg

Wow! Just Googled how to adjust ride height! You can learn so much on this site and save so much time and money. Not sure if that is my problem, but it is the first thing I will check. Is this an adjustment they adjust when aligning the front end?

ttx350z

JDawg

So much thanks, I will do this very soon!!!

JDawg

So with that said, should I take it back, have them re-align it and tell them to make sure the ride height is where I want it? My thoughts, if I change the height, it will mess up the alignment?

sfrank2886

I have been told that if you use the adjustment bolts to lower the ride height, you will need an alignment. I would take it back to whomever aligned it, and ask them if they adjusted the bolts and have them re-check the alignment.

JDawg

I just found out my front suspension leaf spring has a crack in it, causing the sag. Any suggestions on doing it myself, upgrading to a better spring, etc.? I found GM part for $275 but not sure what the dealership will charge, I am sure an arm or a leg!

GM Direct shows a Soft Ride Suspension and a Sport Suspension, my vette is a Base, should I order the Sport?

extrapilot

I would think you have the soft ride, unless the car has the Z51 option, that would be the sport one, if only 2 choices, but what ever you do, you should match it to the rear one, whether soft or sport.

JDawg

Yeah, I was thinking the same thing, just curious if anyone has tackled this job or if I should have the dealership install it. The dealership is such a pain in the ***, just called to get a quote and can even get a hold of a Service Advisor.

Cockroach

Please post a picture before removing the front spring, would like a visual before making a comment.

Sox-Fan

Changing the spring isn't hard. There are a few how-tos here and videos on you tube. You will definitely need an alignment after you do it. You can often find z51 or z06 spring sets in the for sale area by guys that have gone to coil overs. Some people don't mind that they are a little stiffer due to the increase in handling performance.

extrapilot

Here you go, i think he's a member here also.

Sox-Fan

he is. @froggy47

JDawg

Much thanks!

sfrank2886

Cockroach

I'm still skeptical that the front mono spring made of FRP material is cracked and causing a sag, I'll ask again for a picture of the crack. I could be wrong but my guess is its just needs to be adjusted.

Sox-Fan

Cracks are not unheard of. If something hit it, or something really hot got too close, or the wrong chemical was sprayed on it. It's not frequent, but if you look around the forums you'll see that it does happen occasionally. Probably a good idea to try to find out why it happened in order to see if you can prevent it from happening again.