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-   -   Rear suspension noise after lowering (http://mustangforums.com/forum/s197-handling-section/697143-rear-suspension-noise-after-lowering.html)

artdohc 06-22-2013 04:30 PM

Rear suspension noise after lowering
 
Hey everyone, I installed Eibach pro-kit springs, Steeda struts/shocks, and a J&M adjustable panhard bar two weeks ago and while the setup as been great so far, there is a slight rattling noise that comes from the rear suspension when I drive over very aggressive bumps at low speeds.

Over normal use on streets and freeways all is well, but when I go over something that really jostles the suspension heavily at low speeds there is a slight rattle. I've taken off the wheels and given all the suspension parts a good shake, but everything is locked down tight.

I'm at a loss for what it might be, the only thing I can think of is the panhard bar, but when I try to shake the bar with all my strength to re-create the issue it's all locked down.

I'm thinking about pulling the bar off and either running without the bar or tossing the stock bar back on to see if the noise continues, is there any danger to driving with no panhard bar? Also, any other thoughts to where I might look or what I might try to troubleshoot?

Thanks

Phoenix335 06-22-2013 06:01 PM

If I had to guess driving w/o the panhard bar is an extremely bad idea.

artdohc 06-22-2013 07:56 PM

Quote:

Originally Posted by Phoenix335 (Post 8235972)
If I had to guess driving w/o the panhard bar is an extremely bad idea.

Even though pre-S197 Mustangs didn't have one?

DocSnickers 06-22-2013 08:34 PM

Uh yeah that's a bad idea, your rear end will not stay centered. Whole top half of the back end of the car is moving back and forth. The panhard bar not only keeps the rear end centered over the rear axle it prevents it from moving around.

jpplaw 06-22-2013 08:41 PM

With the suspension loaded, try grabbing the exhaust pipes on each side and shake real hard. Thats a possible culprit

Norm Peterson 06-24-2013 05:14 PM

Quote:

Originally Posted by artdohc (Post 8236026)
Even though pre-S197 Mustangs didn't have one?

Different suspension arrangement.

But whether you're talking about the S197, Fox, SN95, or New Edge, there is always exactly four OE links present. You need all four, else the axle will not be under control in at least one direction.

In the S197, you have two lowers, one upper, and the PHB.

In the Fox/SN95/New Edge, you have two lowers and two uppers that are skewed toward each other in plan view to provide lateral axle location.


Norm


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