Need advice on rear trailing arm bushing signs of needing replacement

[Bimmernut2]

Guy, as the title says, I'm looking for input from you guy on what worn RTAB does to handling. I have a '05 ZHP convertible with 99,500 miles. How can you tell, if & when they need to be replaced?
Is there a handling issue difference between the front control are bushings needing to be replace than the rear?
I have replaced the fronts at 68k, using the Meyle HD sold by FCP. The originals were shoot at that point.
Currently, I noticed yesterday, while driving on the interstate & going into a down hill steep curve, as if the rear end was moving, like when you have a low rear tire. I stopped & checked the tires to see if they were low but all is well (Nitto Motivo's) and they are only a couple weeks old.
So, now I'm wondering if I need to replace the rear Trailing arm bushings or would it be the fronts?

Would love to hear input on this.

[t.er]

Sounds like it could be the RTAB. My friend's old 320 had shot RTABs, the rear end would sway quite a bit on the highway. And after about a year he corded his rear tires.

Best thing to do would be to jack it up and see how much play there is between the RTA and the body

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[Will]

I concur, that wondering rear axle feeling is a sign and symptom.

[Dave1027]

Should have the alignment checked and put a pry bar on the trailing arms to see if the bushings are spongy.

[5Field]

Commenting to follow. I've been noticing a very similar swaying in mine, with known recent front suspension work, so that's in good shape. Car has 188k.


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