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Lowering problems

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Old Jan 15, 2009 | 02:44 PM
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Default Lowering problems

I want to take the gap out of the wheel wells. I do not want to slam the car too the ground. I am curious how this will effect handleing, problems with decreased suspension travel, tire wear etc. i am just curious if the problems will be big or non existant, and will it cause damage to any components on the car.

Pics of C6's that have been lowered will be helpful to decide if I need lowering bolts or the stock bolts will lower it enough to take the gap out. I have a 05 Z51
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Old Jan 15, 2009 | 03:14 PM
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Mine's been lowered all the way down on the stock bolts for three years now and no problems except for a little more scraping Kevin
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Old Jan 15, 2009 | 03:32 PM
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This could be interesting! Some guys are gunna tell you to leave it stock, some will tell you to dump it, some will tell you to turn it into a 4X4! Do a search and you'll find some entertaining stuff!

Here is the scoop as I see it: It's you're car so you can do what you want. If you lower it, even lust a little, you have to be EXTREMELY careful about where and how you drive. You will put you're air dam, front bumper cover and lower radiator support at risk. If you drop it just a bit, you can get away with trimming or removing your front air dam with no effect on cooling. If you drop it alot, just go get a lower radiator support for $250 now and keep it in stock because you PROBABLY will smack it at some point unless you are the most careful person in the world and only drive it where you know the world is perfectly flat. Regardless of how much you drop it, get it aligned.

Now for the good part: If you do decide to lower it, there is no need for suspension disassembly or parts replacement. You'll need a 10mm ratcheting wrench, floor jack, jack stands, Sawzall (the fast way to trim the rear bolts) and about an hour!

I'm including a pick of my car lowered on stock front bolts and trimmed rear bolts. I took the picture below BEFORE removing the front air dam. At this height the air dam rubbed on EVERYTHING! I'm talking the high point of the crown in the road.



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Old Jan 15, 2009 | 03:43 PM
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I am more concerned with lowering the rear, I think the front is ok but the rear is way too high. I may leave the front stock.
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Old Jan 15, 2009 | 04:15 PM
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Originally Posted by bmatthe2
I am more concerned with lowering the rear, I think the front is ok but the rear is way too high. I may leave the front stock.
Mark the rear bolts and raise 'em up by two turns. I think you'll be golden with no issues other than an alignment. Be sure to drive the car around the block after each adjustment to settle the suspension.
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Old Jan 15, 2009 | 04:41 PM
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Just dont forget to preserve a rake or you will mess up your high speed stability .
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Old Jan 15, 2009 | 05:05 PM
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Originally Posted by shockwaveharry
You will put you're air dam, front bumper cover and lower radiator support at risk If you drop it alot, just go get a lower radiator support for $250 now and keep it in stock because you PROBABLY will smack it at some point unless you are the most careful person in the world and only drive it where you know the world is perfectly flat.
Just replaced mine and I live in So CA where the roads are pretty good. Also had to replace the tranny fluid line that runs from the tranny to the rad for cooling (A6) cause the radiator shifted down and put a hairline crack in the line. That was a friggen nightmare to replace especially with turbos on.

It is quite difficult to avoid damaging the lower rad support if you lower the front. The rad support (GM calls it a skid plate ) is not designed to take an impact and eventually after one too many scrapes and smacks it will give and break just below the welds. It's no fun replacing the POS lower rad support either. It is a very poor design IMHO.

It looks very with the front lowered, but not worth it IMHO. You have to constantly be cautious and pay extra attn for any dips in the road. When crossing dips, exiting/entering driveways etc, you have to slow down to a crawl which may cause a driver not paying attn behind you to rear-end you. This always scares the crap out of me.
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Old Jan 15, 2009 | 06:30 PM
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Originally Posted by Ginny C6
Mine's been lowered all the way down on the stock bolts for three years now and no problems except for a little more scraping Kevin

Mine has been lowered all the way on the stock bolts for 2 years and never had ANY issues.

Now I agree with some people about things that COULD happen, but it won't if you pay attention and your a good driver.
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Old Jan 15, 2009 | 06:45 PM
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I've been lowered for a while now and have had no negative effects. Definetly get the alignment.
-David
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Old Jan 15, 2009 | 08:58 PM
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Lowered on stock bolts + cut the rears by half. It is low but I had a great alignment done. 1 degree negative camber in the rear. Handles GREAT! No uneven tire wear. Just remember to drive in and out of driveways at an angle.

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Old Jan 16, 2009 | 01:05 AM
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Whatever you decide do not buy the WCC lowering bolts. I height driving my car because of them, my car squeaks like crazy. I can’t wait for the week end so I can take these stupid things out and stop the noise.
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Old Jan 16, 2009 | 08:17 AM
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Originally Posted by BlueFish81
Whatever you decide do not buy the WCC lowering bolts. I height driving my car because of them, my car squeaks like crazy. I can’t wait for the week end so I can take these stupid things out and stop the noise.
Did you read the directions and and put a generous amount of grease on the rubber of the bolts. Mine don't sqeak
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Old Jan 16, 2009 | 06:51 PM
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Originally Posted by BlueFish81
Whatever you decide do not buy the WCC lowering bolts. I height driving my car because of them, my car squeaks like crazy. I can’t wait for the week end so I can take these stupid things out and stop the noise.
Simply grease th bottom of the rubber where it contacts the lower control arm. No more squeeky.
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Old Jan 16, 2009 | 08:39 PM
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If you are thinking of new shocks.. Koni FSDs will lower it 3/8" to 1/2" and really improve the handling and the ride.
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Old Jan 17, 2009 | 10:38 AM
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Originally Posted by CraigE
If you are thinking of new shocks.. Koni FSDs will lower it 3/8" to 1/2" and really improve the handling and the ride.
I've often been curious about this statement and never really understood how changing shocks can have an impact on your ride height. Shocks do not support any weight.
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Old Jan 17, 2009 | 07:17 PM
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Originally Posted by Beatitt
I've often been curious about this statement and never really understood how changing shocks can have an impact on your ride height. Shocks do not support any weight.
yeah gonna have to agree with that statement... unless I am also wrong
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