Upper lower rear control arms

[joepenoso]

rear upper lower control arms

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I've got a chevy 10 bolt in my 442 with U shaped upper lower control arms and no sway bar.
I'm considering making changes but am bot sure to go with stock boxed/rubber bushing mounted arms or something like this
http://www.ebay.ca/itm/271293378881?...T&_trksid=p398 4.m1423.l2649
it seems to have plastic bushings ................what up with that?
The rubber ones last a long time and are quiet..........plastic I'm not so sure.
Any experiences with rear control arm bushings is welcome
Thanks
joepenoso

[Vince@Meanstreets]

Hi Joe, rubber bushings deflect a lot under stress. Poly and delrin (plastic) very little so it puts forces where it needs to go. Both last very long if maintained properly.
There are also spherical bearings available too

[joepenoso]

I'm here just to see the benefits............rubber lasts a long time, (40Years)
No maintenance, no binding, runs quiet ........what exactly am I giving up for what benefit? This is for a street driven classic.
Thanks in Advance
joepenoso