Lowering a C5 is very simple especially if you have access to a lift. I had my Vette mechanic (Vettemaster) lower Sherylann's Z06.
You need to ease the tension on the front spring by using a jack.
Use a 10 mm socket and turn the bolt fully counterclockwise, then back off 1/4 turn.
Rear:
Locate rear adjusting bolt. Use a 13/16" wrench on the top nut and a 18 mm wrench on the bottom.
Top view:
Bottom view:
Turn lower bolt until 2 threads remain showing on the top.
That's it...its best if you have your alignment checked after about 1 week of driving. Be sure to take a banner picture of the mechanic!!
Disclaimer: Neither the author nor the *Vette family of sites claim any fitness or warranty on the above diy tips. Any injury or damage incurred as a result of the use of the tips is the resposibility of the user.
just want to note if the car is slightly older and stock some adjusting bolts may be stuck. easiest solution was to take the leaf out, very easy on jack stands, i welded a nut on the stock bolt- no problem spun right out. now she is slammed on stock z06 gear and rides pretty decent, for new england roads i guess! just want to add i took out the stock bolt altogether and made my own rubber pad out convetor belt material, the spring will rub on the control arm if you don't protect it, and used my own blend of epoxy resin to hold it in place. its very quiet and looks great with 265/35-18 in the front
Last edited by banditz06 : 07-19-2008 at 08:14 PM.
i just did this mod and drove it for about 10 miles and it doesnt look any different, how long does it take to settle?
Welcome to and thank you for your service to our country
Did you lower as much as stock bolts would allow? (you have the front snubber tightened against the leaf on the bottom and max threads showing on top?)
In the rear you have dropped an equal amount (gives' you about one finger difference in height and keeps rake the same as before)
It should settle to lowered height in 50 miles or so.
Then get the alignment checked and reset.
Welcome to and thank you for your service to our country
Did you lower as much as stock bolts would allow? (you have the front snubber tightened against the leaf on the bottom and max threads showing on top?)
In the rear you have dropped an equal amount (gives' you about one finger difference in height and keeps rake the same as before)
It should settle to lowered height in 50 miles or so.
Then get the alignment checked and reset.
Your welcome, Im glad to be here and finally own a Z06. i did exactly what the directions said to do. i left 2 threads in the back showing (equal on both sides) and did 1 full counterclockwise turn then backed off a quarter turn. i think it is settling a little bit more. i have never had to do something like this before. I just came from a Honda S2000 and had a full coilover suspension on there so i guess i just expected more right off the bat. But i will be happy if it sits like the red one in the pic above does. Next mod exhaust. Thanks for such a quick response.
Not really,if it did then it was very little. The thing still looks like a monster truck. I can fit about 3 1/2 fingers in the gap on the front and rear. its driving me nuts.
Im not going to track the car, i just want to make it look pretty. I will eventually attemp to cut the bushings and if that doesnt work get longer bolts. I just need to find out what kind to get. If the red car above did it like that i dont understand how mine is sitting so much higher.
Mine dropped about a finger - normal sized hand - got 4 fingers between tire and fender before; 3 after.
If you want to go lower, instead of cutting your bushings, you might look at the kit that either Vette Brakes & Products or ZIP products sells ... few bux and quicker ... :idea:
They also sell a bump steer kit. (necessary when you drop past the stock range of adjustment, IMHO)
Mine dropped about a finger - normal sized hand - got 4 fingers between tire and fender before; 3 after.
If you want to go lower, instead of cutting your bushings, you might look at the kit that either Vette Brakes & Products or ZIP products sells ... few bux and quicker ... :idea:
They also sell a bump steer kit. (necessary when you drop past the stock range of adjustment, IMHO)
Yeah i will check those out. Thanks i appreciate that.
Yeah i will check those out. Thanks i appreciate that.
I have the ZIP kit. It has not been installed ever. I plan to try lowering on the stock bolts, if I am not happy I will use the zip kit, if I am happy i would gladly sell it to you for a good price.
I have the ZIP kit. It has not been installed ever. I plan to try lowering on the stock bolts, if I am not happy I will use the zip kit, if I am happy i would gladly sell it to you for a good price.
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Another LS engine comin' up. 
and thank you for your service to our country 
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