Lowering rear suspension ?
Thread Starter
Pro
Joined: Sep 2007
Posts: 547
Likes: 2
From: Clinton Twp. Michigan
Lowering rear suspension ?
I want to lower the rear of my 01 C5 Coupe 1 inch on the stock bolts. How many turns or bolt height change do I need to back off? My guess is 1/2 the remaining threads?
Race Director
Joined: Oct 2002
Posts: 16,477
Likes: 26
From: Gone
CI 6-7-8-9-10 Veteran
St. Jude Donor '03
The control arm is at an angle, and since the adjustment point is inboard of the wheel, it takes less adjustment than that to realize the drop at the wheel. It's closer to a 2/3 ratio.
To get a full inch drop at the rear, with no other mods (like cutting bushings or using longer bolts), back the nuts off until you see only a thread or two above the nut. This is about the most you can get out of the stock bolts. If you want more drop, swapping to longer bolts (6.5-7" long) will give you the ability to lower more.
The rear is very easy to adjust and fine-tune....you can do it w/o even jacking the car up. Just slide under the rear and adjust as needed. Loosen the nuts to lower, tighten them to raise it.
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