C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Slight drivers side front sag

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Old Jun 16, 2017 | 11:24 PM
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Default Slight drivers side front sag

Hello all,
1987 Corvette coupe 59000 miles automatic. I have had this car for 5 years and there has always been a slight sag on the drivers side front of the car. The drivers side fender is closer to the tire than the passenger side. A mechanic friend has told me that the front spring has weakened over time causing the sag. My question is... could it be the shock on that side that has lost a bit of pressure to cause that side to look lower? They are Bilsteins and are probably original. None of the shocks leak and the ride seems to be ok. The sag is very slight but my OCD is tugging at me to fix it. The pictures below prolly don't help. Any suggestions?


Drivers side (sagging side)



Passenger side
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Old Jun 17, 2017 | 06:52 AM
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Springs control height, shocks control rebound. If you want to check it out, take the shock off temporarily, unless you have coil-overs taking the shocks does not affect ride height.

You have a spring or suspension issue, not a shock issue.

Last edited by hcbph; Jun 17, 2017 at 06:53 AM.
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Old Jun 17, 2017 | 07:51 AM
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Inspect your spring closely looking for maybe splintering. Also if you had issues with a left front sag the right rear might/should be visually higher in appearance.

If you have a FSM do the "trim height" checks as specified in the suspension section. You can't use the "tire to body panels" for validation.

Trim heights from the FSM after a very close visual inspection of the spring. Do NOT rush to judgement and assume your friend to be correct.

Do you have body panel alignment issues? Maybe!!!

Do you have the FSM?
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Old Jun 18, 2017 | 01:24 AM
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Originally Posted by WVZR-1
Also if you had issues with a left front sag the right rear might/should be visually higher in appearance.


The opposite corner could have a problem (happened to me).
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Old Jun 23, 2017 | 08:48 PM
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Thanks for the input. I checked my ride height in the rear and the stance looks and feels the same. The hood seems straight at the corners and all around. The difference is subtle so I may live with it.

Thanks again,

Kevin
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