3800 Vibrations after spring installation

[markymarc]

I have that annoying but slight vibration at heavy acceleration after having progressive springs installed on OEM struts. Any options to get rid of this? Would better struts take care of it?

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[imported_Diavolo]

need an alignment.

 

[ThaLord]

an allignment is needed, but will not fix that problem.. I am also having that problem, even after the alignment... it has something to do with changing a bolt to a different size.. look it up on *sigh* clubgp.. there are articles about it... I found the solution for it.. just never did it yet..

 

[GTPictor]

i had the same set up never had a problem. did u cut the jounce bumpers in half like you supposed to? and how many miles on the factory srtuts?

 

[HUNTERDOG]

I have the same problem with mine. I have GMPP/Koni's with Eibachs. I had an alignment and I removed the spacer from my sway bar links and installed shorter bolts (one of the supposed fixes) but it is still there. My GTP has over 60k on it and I think it is the axle shafts. They ride at one angle for 60k and then you change it the bearings are going to be sitting differently and will most likely cause a vibration. I don't know if I am 100% right but it seems logical. I thought about getting different axles but any reman will probably have the same wear pattern and new units are big $. I will just live with it for now, mine isn't to bad.

 

[CoolGTX]

check the angle of the sway bar, it must be level, I had vibrations till I leveled out the sway bar, and all is well..

GMPP springs(1 inch drop on my car), on stock struts,52K today. BTW, I now have the anti-pogo thingys on, and Ride is much better(ive only got them on the front)