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12-17-2012 | #1 |
Join Date: Dec 2012
Location: Ooltewah,Tn
Posts: 22
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lowering bolts
Hi
Today i installed the rear lowering bolts with bushings from Mid America,on my 91 ZR1, the job was not too bad just have a couple of questions for the forum members, what is the stock height at the rear of the car from the ground to middle of the fender, after replacing the stock bolts the pass side measures 27 3/4 inches and the drivers side 27 1/4 inches I have played with the the right nut where it has 3 threads left to the bottom of the bolt the left side has about 4 threads left to the bottom of the bolt, I hear there is some settling that occurs with time, should I align it know or drive it some more,also is half an inch difference between the left and right a big deal, what can I do to correct it? thanks for your help. |
12-17-2012 | #2 |
Join Date: Feb 2011
Location: San Marcos CA
Posts: 1,802
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Re: lowering bolts
I've had two C4's and both of them sagged about that much on the driver side.
On my current car, I elected to preload the spring a touch more on the lower side and got it leveled. I do not know how much it might affect the corner weight- I just did it. |
12-18-2012 | #3 |
Join Date: May 2007
Location: Westminster, Maryland
Posts: 3,689
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Re: lowering bolts
In my experience, it is not possible to change left-to-right ride height variation using the long-bolt lowering kit. I think that you may cause stability issues by loading one side of the rear spring more than the other.
I believe that some C4's just sit with a small side to side height variation. Jim |
12-18-2012 | #4 |
Join Date: Dec 2012
Location: Ooltewah,Tn
Posts: 22
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Re: lowering bolts
Hi
Thanks for your imputs, I played with it a little this morning, and settled for a 1/4 inch difference between right and left side, looks fine,and rides well, I will align it in the near future. Dennis Garcia. |
12-18-2012 | #5 |
Join Date: Dec 2012
Location: Chattanooga Tennessee
Posts: 15
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Re: lowering bolts
Well done Brother! now come over and lets do mine!
__________________
Mike G 90 ZR1 #403 |
12-19-2012 | #6 |
Join Date: Sep 2008
Location: Speedway, IN
Posts: 132
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Re: lowering bolts
I had a similar issue on my 91 and found out the rear sway bar was bent. You can also try moving the spring shims around where it mounts in the middle. I have installed this kit on three C4s and they will sit flat side to side, if not otherwise jacked up, although the factory tolerance was pretty large, Gordon K. can no doublt quote the exact number.
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