Powerflex Polly rear trailing arm bushes or standard OEM??

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mattqf77
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Fri Jun 17, 2011 8:09 pm

Polly rear trailing arm bushes or standard rubber ones? have B8 shocks and apex springs on car. Don't want to be changing them again in near future, but heard mixed reviews on polly ones.

Getting serious knocking noises from back end of car so need changing asap...
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greg124
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Fri Jun 17, 2011 9:31 pm

poly in beam, rubber in trailing arms, unless you're taking it on the track.
Trailing arm bushes take much less stress than beam, so should last much longer
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penton08
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Fri Jun 17, 2011 9:35 pm

greg124 wrote:poly in beam, rubber in trailing arms, unless you're taking it on the track.
Trailing arm bushes take much less stress than beam, so should last much longer
I would go the other way tbh, Genuine rubber for the beam as it needs some flex. poly for the trailing arms is OK
DanThe
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Fri Jun 17, 2011 10:05 pm

+1 for pentons comment, I fitted rubber trailing arm bushes to one of my cars and they were showing signs of deterioration after 3 years.
Rubber in the beam, poly in the arms 8)
Dezzy
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Fri Jun 17, 2011 10:08 pm

Another +1 for Penton's comments.

The rear beam needs to be able to move.
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DanThe
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Fri Jun 17, 2011 10:21 pm

Dezzy wrote:
The rear beam needs to be able to move.
Just a little bit like :)
Dezzy
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Fri Jun 17, 2011 10:33 pm

DanThe wrote:
Dezzy wrote:
The rear beam needs to be able to move.
Just a little bit like :)
Oh yeh i dont mean loads.. :wink:
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greg124
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Sat Jun 18, 2011 5:09 am

Doh! Does that mean I've got to have my rear beam off again guys?
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harry_p
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Sat Jun 18, 2011 7:56 am

I prefer how they drive with poly beam bushes, but I wouldn't change the trailing arm ones unless they actually needed doing. Subframe bushes don't seem to last anywhere near as long as the arm bushes, which suggests to me they're under specified as standard.

With poly beam bushes you get a little more noise and buzz into the cabin, and maybe slightly less traction, but i much prefer a tighter, more predictable and controllable rear, I hate the slop you can feel as even brand new bushes take the strain and the subframe shifts over, especially on fast direction changes from one way to the other.
cheers,

harry
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