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Discussion Starter · #1 ·
Hi -

I just purchased a set of OEM boxed rear control arms and anti-sway bar and going to refurbish. I've read other posts that suggest not using poly bushings on the upper, rear arms due to potential binding, although I see there are vendors (e.g. PST) that sell them.

What's the real story here? Poly lower, rubber upper? Poly all the way around? Application is for my '69 convertible, street car - not auto crossing or anything fancy. My front end was refurbished with poly several years ago, finally getting around to doing the rear.

Thanks in advance -

jim
 

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I've heard poly in the rear and rubber in the front for street use. The rubber seems to have a better steering feel to some people.
Also really grease the poly, it will squeak.
 

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If it is a street car, with occasional drag strip, use good rubber bushings (Moog) all the way around (front and rear).

You and the car will be much happier.

Glenn
 

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I have UMI bushings (poly) and installed correctly. There are no squeaks or binding. I also have UMI control arms along with a rear sway bar. Take your time and pay attention to get everything lubricated and NOT overtightened.
 

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David like your UMI Perf suspension parts colour choice





 

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Discussion Starter · #11 ·
Thanks for the replies thus far...

The problem I'm trying to solve with poly is doing this again in a few years. I've read numerous posts that today's rubber doesn't hold up well. I've been happy with poly on the front - although on rougher roads I do believe it transmits more vibration to the chassis than rubber would.

jim
 

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Not to harp on it but good quality stock replacement parts (Moog) will last a life time.

In fact Moog offers lifetime replacement.

My 2 cents

Glenn
 
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