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| Lowered suspension makes the rear literally bounce around? (Page 1/3) |
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Threedog
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MAY 15, 02:02 PM
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I bought new struts when I installed my lowering springs in the rear. They are the stock struts with springs that are 3/4in lower, so not much. However, the second I go over a bump the car acts like it has no shocks at all. The back bounces back and forth so much I literally have to stop.
Do I need to buy different struts? How would I even find struts that are correct with the lowering springs?
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Patrick
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MAY 15, 02:21 PM
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| quote | Originally posted by Threedog:
I bought new struts...
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Did you work the struts up and down a few times prior to installing the springs on them? Did they offer resistance in both directions?
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Threedog
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MAY 15, 02:39 PM
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| quote | Originally posted by Patrick:
Did you work the struts up and down a few times prior to installing the springs on them? Did they offer resistance in both directions?
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I did, and they did.
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fierosound
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MAY 15, 02:49 PM
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Threedog
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MAY 15, 04:37 PM
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| quote | Originally posted by fierosound:
What springs did you use?
They sound super stiff...
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https://www.autoanything.co...Cj0KCQjw-_j1BRDkARIs AJcfmTE-quGQ1cLzTRQ0d7WvWLH47GTRUhWlTDraicTLUxIqLi7pifWmw0EaAhdBEALw_wcB
It said it should work with stock shocks..
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Patrick
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MAY 15, 05:21 PM
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What brand of strut did you buy?
Did you get the wheels aligned afterwards?
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fierosound
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MAY 15, 06:17 PM
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OK... this is an odd one, so bear with us. 
What year, and was any other rear suspension work done?
Does the car move much if you stand in the trunk and "bounce it"?[This message has been edited by fierosound (edited 05-15-2020).]
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Threedog
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MAY 15, 08:11 PM
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Im gonna try and answer all of the questions!
| quote | Originally posted by Patrick:
What brand of strut did you buy?
Did you get the wheels aligned afterwards? |
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I bought a pair of KYB KIT234005 GR-2 / Excel-Gs, the only ones available on rockauto. (Also the same struts I had previously)
Yup! the car is alligned.
| quote | Originally posted by fierosound:
OK... this is an odd one, so bear with us.
What year, and was any other rear suspension work done?
Does the car move much if you stand in the trunk and "bounce it"?
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Thanks for helping!
Its an 87 with a 3800SC in it.
A TON of work was done, literally everything. I removed the whole rear suspension and had it powdercoared. This mean new tie rods, cradle and a-arm bushings, balljoints, brakes, springs, and struts all around. (New stab links in the front as well)
And that last question is why this is so weird for me! I can move it just like before. I can push it down and back and forth and it pops back up but immediately stops like there is nothing wrong..
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Patrick
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MAY 15, 10:14 PM
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| quote | Originally posted by Threedog:
A TON of work was done, literally everything.
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Now that we know that, I'll go out on a limb and suggest that the lowering springs themselves have nothing to do with this issue. 
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fierosound
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MAY 15, 10:48 PM
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| quote | Originally posted by Threedog:
A TON of work was done, literally everything... |
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OK... so it's not a case of "I installed new struts and springs and now it won't ride right..." LOL
| quote | Originally posted by Threedog:
I can move it just like before. I can push it down and back and forth and it pops back up but immediately stops like there is nothing wrong.. |
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Did you torque the rear control arms bolts properly to 66 ft-lbs?
There is such as thing as too tight which would prevent the suspension from responding quickly.
Put a jack or stand under the control arm to support the weight of car before tightening.
It's important to have torqued all bolts properly on all the front components for proper suspension response as well.
 [This message has been edited by fierosound (edited 05-16-2020).]
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