Help! Rear leaf spring issue?
Thread Starter
Racer
Joined: Sep 2012
Posts: 342
Likes: 52
Help! Rear leaf spring issue?
Z06 #2770, 775 miles on it, lowered at dealership about 3/4" (not anywhere near slammed - measured 4 1/2" from wheel rim top to wheel well flange).
After driving, left side rear settled almost 1/2", to 4", right side maintained at original 4 1/2".
Turned L. ride height bolt 5 turns up. Measured 4 3/8". Drove a day or two, height down to 4 1/4", then 4 1/8". R side still near 4 1/2".
Looked at rear leaf spring. Dead level and firmly bolted down in the center, left edge of spring (near ride bolt) curved up, with noticeable gap between spring and lower arm; right side spring edge near bolt curved much less, with little gap between spring and lower arm. Left bolt obviously much lower than right bolt (at least 6 turns worth).
In a word, the rear leaf spring is bent noticeably more on the left than on the right.
Z06 owners, anybody notice a difference in curvature between left and right rear sides of leaf spring?
Trying to get help from Customer Service.
Thanks,
Mike
After driving, left side rear settled almost 1/2", to 4", right side maintained at original 4 1/2".
Turned L. ride height bolt 5 turns up. Measured 4 3/8". Drove a day or two, height down to 4 1/4", then 4 1/8". R side still near 4 1/2".
Looked at rear leaf spring. Dead level and firmly bolted down in the center, left edge of spring (near ride bolt) curved up, with noticeable gap between spring and lower arm; right side spring edge near bolt curved much less, with little gap between spring and lower arm. Left bolt obviously much lower than right bolt (at least 6 turns worth).
In a word, the rear leaf spring is bent noticeably more on the left than on the right.
Z06 owners, anybody notice a difference in curvature between left and right rear sides of leaf spring?
Trying to get help from Customer Service.
Thanks,
Mike
Racer
Joined: Dec 2009
Posts: 356
Likes: 23
From: Augusta Georgia
Also cleaning solvents can make the leaf collapse. I know! It happened back in 1982 to me when they started using composite leaf springs. A little too much aluminum brightener on my mufflers and wham it collapsed!
Thread Starter
Racer
Joined: Sep 2012
Posts: 342
Likes: 52
No, I watched them put it on the lift. Their lift has a neat hydraulic shelf thing that slides forward/back between the ramps and allows any point to be raised. They also have a special tool specifically for ride height adjustment, that fits/clamps on the lower A arm. All very professional.
Here's pics of left and right sides.
Here's pics of left and right sides.
Drifting
Joined: Nov 2014
Posts: 1,540
Likes: 49
From: Fort Worth TX
Z06 #2770, 775 miles on it, lowered at dealership about 3/4" (not anywhere near slammed - measured 4 1/2" from wheel rim top to wheel well flange).
After driving, left side rear settled almost 1/2", to 4", right side maintained at original 4 1/2".
Turned L. ride height bolt 5 turns up. Measured 4 3/8". Drove a day or two, height down to 4 1/4", then 4 1/8". R side still near 4 1/2".
Looked at rear leaf spring. Dead level and firmly bolted down in the center, left edge of spring (near ride bolt) curved up, with noticeable gap between spring and lower arm; right side spring edge near bolt curved much less, with little gap between spring and lower arm. Left bolt obviously much lower than right bolt (at least 6 turns worth).
In a word, the rear leaf spring is bent noticeably more on the left than on the right.
Z06 owners, anybody notice a difference in curvature between left and right rear sides of leaf spring?
Trying to get help from Customer Service.
Thanks,
Mike
After driving, left side rear settled almost 1/2", to 4", right side maintained at original 4 1/2".
Turned L. ride height bolt 5 turns up. Measured 4 3/8". Drove a day or two, height down to 4 1/4", then 4 1/8". R side still near 4 1/2".
Looked at rear leaf spring. Dead level and firmly bolted down in the center, left edge of spring (near ride bolt) curved up, with noticeable gap between spring and lower arm; right side spring edge near bolt curved much less, with little gap between spring and lower arm. Left bolt obviously much lower than right bolt (at least 6 turns worth).
In a word, the rear leaf spring is bent noticeably more on the left than on the right.
Z06 owners, anybody notice a difference in curvature between left and right rear sides of leaf spring?
Trying to get help from Customer Service.
Thanks,
Mike
