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Rubber or poly bushings

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Rubber or poly bushings

Posted: 12/11/14 8:03amMessage 1 of 8
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Tisdale, Canada
Joined: 12/24/2013
Posts: 423
Vette(s): 1975 L48 Stingray 1992 LT1
I have been deliberating over this for a while now reading all the pros and cons from other members and I must say they are really divided on the kind to use.  so I'm working on removing body mounts, and on one I had to cut the old rubber one off.  So the outside looks like crap and you would think that there is nothing left of it but let me tell you the rubber on the inside was in amazingly good shape and that's after 40 years.  Sooooo I'm thinking who am I to argue with 40 years and am strongly thinking of putting the rubber bushings back on my car, it will never be a daily driver anyway and if they are still there in another 40 years that would be outstanding.

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Re: Rubber or poly bushings

Posted: 12/11/14 8:50amMessage 2 of 8
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Joined: 11/30/2006
Posts: 441
I used rubber,much the same thinking.
1979 Corvette
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Re: Rubber or poly bushings

Posted: 12/11/14 9:04amMessage 3 of 8
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WEST SENECA, NY - USA
Joined: 12/3/2001
Posts: 2381
Vette(s): 1981 Blue Ice Met. w/pearl ghost flames TKO500 5speed. LS1 Swap 3.45 Dana 44.
I did rubber body mounts and poly on the suspension.


GEN III 5.7L "LS6" Engine swap
TKO500 5 spd.

3.54 Dana 44
'69 "N11" Sidepipes
Borgeson Steering Box
Born 8/1981
Sequence #3975




Click here to see more pics of my Vette on CarDomain.


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Re: Rubber or poly bushings

Posted: 12/11/14 12:40pmMessage 4 of 8
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Equinunk, PA - USA
Joined: 10/31/2007
Posts: 2570
Vette(s): 1972 conv, 4-speed, 350, 200hp, numbers match, rally wheels, war bonnett yellow w/white top. good condition, nice driver.
 Just as a F.Y.I., rubber is softer and gives a better ride. Poly is more stiff and is a little less comfortable in bumps. On the road at resonable speed you'll never know the difference. Not sure how price compares, but poly are on mine, and the few fast turns and G forces I experience give me a thrill that make the decision worth while.Thumbs Up
  
      I should say, My suspension is all poly, I've done nothing to the body mounts.


|UPDATED|12/11/2014 12:40:49 PM (AZT)|/UPDATED|
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Re: Rubber or poly bushings

Posted: 12/11/14 10:31amMessage 5 of 8
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Duncanville, TX - USA
Joined: 11/8/2003
Posts: 22715
Vette(s): #1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas
Poly body mounts will drive you nuts. They will transfer much more road noise into the cabin. The older cars(before '73) had solid body mounts. They started using rubber mounts in '73 to lessen the noise, since the cars were turning into Grand Touring, instead of outright hotrods. The rubber also helps with minor squeaks/rattles, compared to solid/poly mounts. Thumbs Up

Joel Adams
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Re: Rubber or poly bushings

Posted: 12/11/14 11:38amMessage 6 of 8
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Grapevine, TX - USA
Joined: 8/26/2006
Posts: 1537
Vette(s): 1972 LT-1 convertible with factory air. 2017 Black Rose Grand Sport M7 convertible.
There are a few threads on the other forum about poly bushings disintegrating.  I go with rubber.

http://www.corvetteforum.com/forums/c3-general/3519855-what-the-hell-is-going-on-new-polyurethane-bushings-are-disintegrating.html

   

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Re: Rubber or poly bushings

Posted: 12/13/14 7:58pmMessage 7 of 8
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Overland Park, KS - USA
Joined: 7/9/2003
Posts: 916
Vette(s): 1973 Orange Metallic Coupe (orig owner), L82, 4 spd (WR), PS, (A/C & PW (I installed from wrecked 73)), leather, AM/FM Stereo, ran with '65 FI unit earlier & will again some day. 2023 Accelerate Yellow HTC Stingray
Unless you get the grease-able kind, poly control arm bushings squeak a lot.  Unhappy

1973 L-82 4 spd

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Re: Rubber or poly bushings

Posted: 12/14/14 1:31pmMessage 8 of 8
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Boise, ID - USA
Joined: 5/29/2013
Posts: 159
Vette(s): 1972 mille miglia red corvette convertible. This is a car currently under restoration. The pic above is of me and my Ph.D. candidate daughter. She, not my Vette, is my pride and joy. Smile...
Mostly poly on mine. I smeared tons of anti seize grease with zinc on them. No squeaks at all. They're more expensive though.
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