Go Back   Corvette Forum > C6 Corvette, 2005 - 2013 > C6 Tech/Performance
Sign in using an external account
Register Forgot Password?
Register Search Today's Posts Mark Forums Read FAQ Vendor Directory
Search
C6 Tech/Performance
LS2, LS3, LS7, LS9 Corvette Technical Info, Internal Engine, External Engine, Tech Topics, Basic Tech, Maintenance, How to Remove & Replace Sponsored by
21st Century Muscle Cars

Reply
 
 
 
 
Thread Tools Search this Thread
Old 10-15-2012, 02:35 AM   #1
milt IV
CF Senior Member
 
milt IV's Avatar
 
Member Since: Apr 2009
Location: DFW TX
Default Lowering bolt install C6 how to (with pics)

Installed lowering bolts today on my 2013 GS and though I would do a quick little write up on them for future searchers. Got them from forum vendor Corvette Mods. It was really easy with a lift but could be done with jack stands.

First off, the front and rear is the same process. There are different mounting bolts for the upper control arms and lower shock mount up front than the rear but they are in the same place. Watch out for the washers behind the upper CAs up front. The below pics are all form the rear.

I removed the sway bar, unbolted the upper control arm at the frame, and unbolted the the lower shock mount all in that order. This allows the assymbally to come down enough so that you can thread the stock bolts out and also thread the lowering bolts back in. They must come out/go in through the bottom of the leaf. It helps to pry up on the leaf with a pry bar or handle of a mallet or something so you can get the last little bit of clearance to get the bolts in and out. You don't have to pry much,
Click the image to open in full size.
Click the image to open in full size.
Click the image to open in full size.
Click the image to open in full size.
Click the image to open in full size.

Stock vs Lowering bolt. You can see how much shorter the pad is on the lowering bolt. This allows the lower control arm to come up closer to the leaf when the weight of the vehicle is on the suspension, thus lowering the ride height.
Click the image to open in full size.


Once you have the old ones out simply thread the new ones in and re-asymble everything in the reverse order of how you removed it. If you thread the new ones all the way up to the leaf you will be achieving maximum drop. I threaded mine all the way up then made a mark on the leaf and the pad with a paint pen. I then turned mine out one full turn at all four corners. This gave me a tight one finger gap between tire and fenders.

Kind of hard to see the gap in these pics because it was dark by the time I got done and got back to the house with the suspension settled. I will add some day time pics sometime this week. I am super happy with the new stance, it really finished off the exterior for me.
Click the image to open in full size.
Click the image to open in full size.
Click the image to open in full size.
Click the image to open in full size.
Click the image to open in full size.
Click the image to open in full size.
Click the image to open in full size.
Click the image to open in full size.
Click the image to open in full size.
Click the image to open in full size.

Last edited by milt IV; 10-15-2012 at 02:37 AM.
milt IV is offline   Reply With Quote
Old 10-15-2012, 07:21 AM   #2
newvetteguy9
CF Senior Member
 
Member Since: Sep 2012
Location: Gambrills MD
Default

Awesome looking for daytime pics!
newvetteguy9 is offline   Reply With Quote
Old 10-15-2012, 10:43 AM   #3
LFZ
CF Senior Member
 
LFZ's Avatar
 
Member Since: Feb 2003
Location: Charlotte NC
Default

Keep an eye on them...especially if you drive hard.
LFZ is offline   Reply With Quote
Old 10-15-2012, 12:15 PM   #4
Biggie G
CF Senior Member
 
Biggie G's Avatar
 
Member Since: Oct 2007
Location: Chicago, IL
Default

Nice writeup and looks sick

did ya need alingment? hows it driving? any pulling?


Quote:
Originally Posted by LFZ View Post
Keep an eye on them...especially if you drive hard.
oh yeah? why? the top rubber bushing will fall apart or something?
Biggie G is offline   Reply With Quote
Old 10-15-2012, 12:20 PM   #5
marc8090
CF Senior Member
 
marc8090's Avatar
 
Member Since: Nov 2008
Location: Long Island NY
Default

Good luck. Myself and many others have experienced very short life from those lowering bolts. The rubber pad will tear in no time exposing the metal bolt underneath allowing it to rub on the arm directly. If you drive the car every day plan on replacing them in a month.
marc8090 is offline   Reply With Quote
Old 10-15-2012, 01:25 PM   #6
Biggie G
CF Senior Member
 
Biggie G's Avatar
 
Member Since: Oct 2007
Location: Chicago, IL
Default

^ oh dam. yeah I do drive it almost everyday.

how bout cutting down the stock bolt? they have to be more durable?
Biggie G is offline   Reply With Quote
Old 10-15-2012, 02:07 PM   #7
milt IV
CF Senior Member
 
milt IV's Avatar
 
Member Since: Apr 2009
Location: DFW TX
Default

Quote:
Originally Posted by corvettemods1 View Post
Great write up!

Anyone else looking to lower their C6, we have these on sale right now for $39.99!

http://www.corvettemods.com/C6-Corve...it_p_5061.html
Thanks for the great product and super quick shipping!

Quote:
Originally Posted by newvetteguy9 View Post
Awesome looking for daytime pics!
Thanks.

Quote:
Originally Posted by LFZ View Post
Keep an eye on them...especially if you drive hard.
I keep an eye on everything. Thanks for the heads up though.
Quote:
Originally Posted by Biggie G View Post
Nice writeup and looks sick

did ya need alingment? hows it driving? any pulling?

oh yeah? why? the top rubber bushing will fall apart or something?
Thanks. I will be getting an alignment this weekend just to be safe. Anytime you significantly change your ride height it is a good idea to get an alignment. It is driving fine as is, no pulling or anything and the change in ride quality is barely noticeable.

Quote:
Originally Posted by marc8090 View Post
Good luck. Myself and many others have experienced very short life from those lowering bolts. The rubber pad will tear in no time exposing the metal bolt underneath allowing it to rub on the arm directly. If you drive the car every day plan on replacing them in a month.
I will keep an eye on them. It is not a daily driver.
milt IV is offline   Reply With Quote
Old 10-15-2012, 02:08 PM   #8
LFZ
CF Senior Member
 
LFZ's Avatar
 
Member Since: Feb 2003
Location: Charlotte NC
Default

Quote:
Originally Posted by Biggie G View Post
^ oh dam. yeah I do drive it almost everyday.

how bout cutting down the stock bolt? they have to be more durable?
Cut bolts....lowering bolts...could go either way. I've had lowering bolts and took them off after 5000 miles and they were shredded.
LFZ is offline   Reply With Quote
Old 10-15-2012, 04:44 PM   #9
Biggie G
CF Senior Member
 
Biggie G's Avatar
 
Member Since: Oct 2007
Location: Chicago, IL
Default

this sucks.

do the front wear out quicker then the rears? im hoping to atleast lower the rear a 3/4 to 1/2 an inch just to level it out
Biggie G is offline   Reply With Quote
Old 10-15-2012, 05:09 PM   #10
LFZ
CF Senior Member
 
LFZ's Avatar
 
Member Since: Feb 2003
Location: Charlotte NC
Default

Quote:
Originally Posted by Biggie G View Post
this sucks.

do the front wear out quicker then the rears? im hoping to atleast lower the rear a 3/4 to 1/2 an inch just to level it out
IMO, the rears take more abuse due to the fact that with lowering bolts, the spring can separate from the lower control arm during hard dips when coming up. (This is why the stock rear bolt bushing is so thick)

When I had them in, I could actually feel the bolt pad smacking the lower control arm pocket. That type of abuse kills those pads. Of course this is during hard driving. If you drive like Miss Daisy...You shouldn't really have any problems.
LFZ is offline   Reply With Quote
Old 10-15-2012, 06:30 PM   #11
Biggie G
CF Senior Member
 
Biggie G's Avatar
 
Member Since: Oct 2007
Location: Chicago, IL
Default

um I see

so there is another low costing mod to lower it?


(sorry for the highjack op )
Biggie G is offline   Reply With Quote
Old 10-15-2012, 06:55 PM   #12
Gotcha
CF Senior Member
 
Gotcha's Avatar
 
Member Since: Apr 2000
Location: Indianapolis Indiana
Default

On C5's and C6's ...I've always put a little grease on the contact pad of the lowering bolts, it really helps the aftermarket ones!
Gotcha is offline   Reply With Quote
Old 10-15-2012, 07:26 PM   #13
WHT
CF Senior Member
 
WHT's Avatar
 
Member Since: Feb 2007
Location: Southlake Texas
Default

Quote:
Originally Posted by Biggie G View Post
^ oh dam. yeah I do drive it almost everyday.

how bout cutting down the stock bolt? they have to be more durable?
Remember, unless things have changed, GM doesn't sell the stock bolts by themselves and you have to buy the entire spring. Makes it expensive to go back to stock.
WHT is offline   Reply With Quote
Old 10-15-2012, 07:32 PM   #14
LFZ
CF Senior Member
 
LFZ's Avatar
 
Member Since: Feb 2003
Location: Charlotte NC
Default

Quote:
Originally Posted by Biggie G View Post
um I see

so there is another low costing mod to lower it?


(sorry for the highjack op )


jk...not really. As long as you don't track or drive too aggressive..should be ok.
LFZ is offline   Reply With Quote
Old 10-15-2012, 10:20 PM   #15
VET4LES
CF Senior Member
 
VET4LES's Avatar
 
Member Since: Oct 2004
Location: San Clemente CA
Default

Thanks for the information. Beautiful Corvette.
VET4LES is offline   Reply With Quote
Old 10-16-2012, 11:40 AM   #16
marc8090
CF Senior Member
 
marc8090's Avatar
 
Member Since: Nov 2008
Location: Long Island NY
Default

A very reasonable way to lower the car price wise is to use Hardbar bolts. Some people have complained of squeaking with them, but mine have been silent since day 1. And they won't wear out.
marc8090 is offline   Reply With Quote
Old 10-16-2012, 02:24 PM   #17
Biggie G
CF Senior Member
 
Biggie G's Avatar
 
Member Since: Oct 2007
Location: Chicago, IL
Default

^ whered ya get yours? what brand? thanks


Quote:
Originally Posted by LFZ View Post


jk...not really. As long as you don't track or drive too aggressive..should be ok.


yeah I hear ya it was kind of a funny dumb question...
Biggie G is offline   Reply With Quote
Old 10-16-2012, 02:29 PM   #18
LFZ
CF Senior Member
 
LFZ's Avatar
 
Member Since: Feb 2003
Location: Charlotte NC
Default

Becareful with Hardbar bolts....the spherical shape of the delrin pads dug a slight pocket in the control arms when when I had them. Not sure if that would eventually cause any harm, but I didn't like it... Yes I have been through it all when it comes to lowering! LOL!
LFZ is offline   Reply With Quote
Old 04-24-2013, 01:03 AM   #19
milt IV
CF Senior Member
 
milt IV's Avatar
 
Member Since: Apr 2009
Location: DFW TX
Default

Just an update. These lowering bolts are complete garbage. I have already gone through my 2nd set on the rear. Yes, I used plenty of heavy duty grease. My car is not a daily driver. I got about 1k miles out of each set in the rear before that delrin pad was completely disintegrated, like it's not even there, just metal on metal now. Real easy to tell because it starts making an awful noise over the smallest cracks and you can actually feel the metal to metal contact. I will be cutting down the pad on the stock bolts this weekend for the rears and will see how those hold up. That rubber pad on the stock ones seems much more durable than that delrin crap on the corvette mods ones. Don't waste your money on them unless your car is a trailer queen show car, seriously.
milt IV is offline   Reply With Quote
Old 04-24-2013, 08:32 AM   #20
Flame Red
CF Senior Member
 
Flame Red's Avatar
 
Member Since: May 1999
Location: Windermere FL
Default

I am reading all these threads about after market lower bolts. I get the idea of the improved look/stance and so I am not critiquing anyone's mods. But I cannot believe that cars so lowered don't scrape on every dip on the road? I guess I am the only one that actually raised the ride height because I was sick of the scraping.

Reading other threads, the consensus is that any major change in ride height dictates that alignment should be checked.
Flame Red is offline   Reply With Quote
Old 04-24-2013, 08:32 AM
 
Go Back   Corvette Forum > C6 Corvette, 2005 - 2013 > C6 Tech/Performance
Reload this Page Lowering bolt install C6 how to (with pics)
 
 
 
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
My first sports car 11gsvette C6 Corvette General Discussion 24 05-28-2013 10:59 PM
F1 2013 c.o.t.a. Pics milt IV Other Cars 2 05-13-2013 09:34 AM
My official build thread: 2013 Grand Sport Coupe 2LT milt IV C6 Corvette General Discussion 56 12-18-2012 02:54 PM
Took delivery of my '13 GS!!! PICS!!! milt IV C6 Corvette General Discussion 85 08-13-2012 11:32 PM



Thread Tools Search this Thread
Search this Thread:

Click for Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Forum Jump

Corvette Store
 
 
C7 Parts & Accessories
C6 Parts & Accessories
C5 Parts & Accessories
C4 Parts & Accessories
C3 Parts & Accessories
C2 Parts & Accessories
C1 Parts & Accessories
Wheels & Tires
Sponsored Ads
 
 
Vendor Directory
 

All times are GMT -4. The time now is 04:14 PM.


Emails & Password Backup