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c4 ride height

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Old Nov 6, 2013 | 09:55 AM
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Default c4 ride height

I know that this has probably been beat to death but I've got a question.
My '95 has a ride height of 27 1/4" on driver's side and 28 3/4" on passenger's side. I am trying to get the high side down. I know that a lowering kit (longer bolts) is sold but I don't think this would solve my problem. I have removed the castle nut, which takes the bolt issue out of play, and the right side was still high. Also I dont think that it is a problem with the spring as with the castle nut removed it takes the spring out of play as well. Could it be a problem with the shocks. I guess all that was holding the right side up was the shock. What are your thoughts??
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Old Nov 6, 2013 | 10:05 AM
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Originally Posted by gfain
I know that this has probably been beat to death but I've got a question.
My '95 has a ride height of 27 1/4" on driver's side and 28 3/4" on passenger's side. I am trying to get the high side down. I know that a lowering kit (longer bolts) is sold but I don't think this would solve my problem. I have removed the castle nut, which takes the bolt issue out of play, and the right side was still high. Also I dont think that it is a problem with the spring as with the castle nut removed it takes the spring out of play as well. Could it be a problem with the shocks. I guess all that was holding the right side up was the shock. What are your thoughts??
Your problem could easily be on the "other end" of the car. Assuming you're talking "rear" if you had a situation that made the L/F "low" the right rear would rise! Is that your problem? Can't say.

Ride height isn't measured the way that you just mentioned (wheel house height), initially you need to establish those dimensions using the FSM measuring points and "then" you could measure the "wheel house height" for random checks or verify your changes with the bolts, shims or whatever.
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Old Nov 6, 2013 | 10:34 AM
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Originally Posted by gfain
I have removed the castle nut, which takes the bolt issue out of play, and the right side was still high. Also I don't think that it is a problem with the spring as with the castle nut removed it takes the spring out of play as well.
When you say you removed the castle nut, please clarify. Removing the nut would detach one side of the rear spring from the spindle. On those long bolts, running the nut UP the bolt raises that corner of the rear. Running the nut DOWN lowers the car.

You say have a 1 1/2" ride height difference R to L. That is way to much to try and make up by adjusting the nuts on the rear bolts. Something else is wrong.
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Old Nov 6, 2013 | 08:15 PM
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Originally Posted by WVZR-1
Your problem could easily be on the "other end" of the car. Assuming you're talking "rear" if you had a situation that made the L/F "low" the right rear would rise! Is that your problem? Can't say.

Ride height isn't measured the way that you just mentioned (wheel house height), initially you need to establish those dimensions using the FSM measuring points and "then" you could measure the "wheel house height" for random checks or verify your changes with the bolts, shims or whatever.
Thanks for your reply. Last week I took the car to an alignment shop. We took measurement from the ground to 4 locations on the frame--2 on the left and 2 on the right. I cant remember what the measurements were but the right side was higher. Not the 1 1/2" but higher. Yes it is the rear. He did check the front suspension of the car visually and didnt see anything that was obviously a problem.
Once again, thanks!
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Old Nov 6, 2013 | 08:24 PM
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Originally Posted by 92ragtop
When you say you removed the castle nut, please clarify. Removing the nut would detach one side of the rear spring from the spindle. On those long bolts, running the nut UP the bolt raises that corner of the rear. Running the nut DOWN lowers the car.

You say have a 1 1/2" ride height difference R to L. That is way to much to try and make up by adjusting the nuts on the rear bolts. Something else is wrong.

I know that loosening the castle nut is how you can lower the rear stance of the car. With stock bolts there is little adjustment that can be made. To determine if longer bolts were needed we totally removed the castle nut from the bolt. Like I said the car was still high on that corner so a longer bolt would not be of any benefit. Just wondering what else could be holding that corner up??
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Old Nov 6, 2013 | 09:03 PM
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Originally Posted by gfain
I know that loosening the castle nut is how you can lower the rear stance of the car. With stock bolts there is little adjustment that can be made. To determine if longer bolts were needed we totally removed the castle nut from the bolt. Like I said the car was still high on that corner so a longer bolt would not be of any benefit. Just wondering what else could be holding that corner up??
The opposite front is "low"! You correct the "under car dimensions/height" the SMC body panels are only attached with adhesive, there can be and sometimes are what seems to be rather odd differences using the points that you're attempting to use as reference points.

Last edited by WVZR-1; Nov 6, 2013 at 09:08 PM.
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