vibration....Lowering springs?

**BillGTX** · 07-15-2011

Hello to all!

New to forum and looking forward to reading and adding to the posts as I can. Nice to see passion for the Pontiac Nation! Have enjoyed reading posts for a little while and decided to join today.
Was wondering if someone could direct me to taking care of a problem I am having with vibration felt when under load anitially when taking off from stop, also when "getting on" the throttle you can feel it consistently.
I just replaced both drive shafts and did help, but problem is still there.
Everything is reel tight and there is no problem w/ wheels. I did have SLP lowering springs I installed about 4 yrs ago (1"drop). One of the springs broke (rotted), so I replaced w/ B&G about a month ago (1.25" drop.
Thats when the vibration started. I've read in the forum about an option provided by "Vinnie", could someone get me in contact with him to see if he has a fix for me. Thanks again, BillGTX

**tayl5645** · 07-15-2011

I would think the uneven drop itself would cause this vibration your car is not balanced at all. But i know nothing about lowering

**BillGTX** · 07-15-2011

Sorry, I did't clarify. I replaced all the springs with B&G (1.25" drop)
Thanks!

**tayl5645** · 07-15-2011

Ahh ok then im sure someone thats does the lowering stuff in will be able to help you if it has anything to do with it. Maybe Bio can help you he does alot of suspension stuffs

**Hippo Machine** · 07-15-2011

I think these would help:

ZZ Performance

It has these benifits:

Better oil pickup during drag racing
Removes vibration caused from lowering the car
Better axle alignment for less HP loss through the shafts
Increased weight on the front tires for better launching
Added clearance to sway bar for header and downpipe installs

Hope I helped!

**matt5112** · 07-15-2011

Your axle angle is messed up.

Get engine and tranny mount spacers.

**BillGTX** · 07-15-2011

I've heard of two sources, zz performance and a guy who I believe is a member on this forum (Vinnie?) Please direct me
Thanks, BillGTX

**SilvaMan61** · 07-15-2011

bill, were you by any chance outside of advanced autoparts in salem nh the other day? with your beautiful red GTX? i think i may have saw you as i ran into CVS.