H&R spring\14mil IRS bolt issue install

[dezracer]

I posted this in suspension modificatios several days ago , with no help. The issue is a clunk noise is coming from the rear end when during into a driveway at low speeds. I cant tell if its on the compression or rebound stroke. The shop installed the following.

1. H&R race springs
2. MM poly isos
3.14 mil IRS subframe bolts
4. MM CC plates

Any ideas would be greatly appreciated.:idea:

 

[Ray Hilton]

I have that exact same combo. No clunk here. However I used to have a clunk coming from the rear in similar conditions as you describe. My trouble was way to much rear gear back lash. Way to loose. I had this tightened up and no more clunk. Does that help you at all? Also, How hard are you on your drive train parts? Hole shots, burnouts etc.? Maybe you have a ujoint in the rear end or drive shaft with excessive slop. Just a couple of thoughts I had. Trying to help you out. Keep us posted OK?

Ray H.

 

[dezracer]

Thanks for the reply but no thats not it. Its difinently a suspension component.

 

[JB]

:read: http://www.svtperformance.com/forums/showthread.php?t=94076

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[04MystiCobra]

Bolts torqued properly?
Loose exhaust hanger or exhaust hitting the suspension?
Rear springs seated properly?