Suspension and Chassis Questions about your suspension? Need chassis advice?

Poly or rubber isolators for springs

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Old Nov 8, 2012 | 06:20 PM
  #1  
soarestransam's Avatar
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From: New Bedford MA
Car: 1988 Gta trans am
Engine: LR4 4.8
Transmission: 98-02 t56 6 speed
Axle/Gears: Bw 9 bolt (3.70’s) pbr rotors
Poly or rubber isolators for springs

Ok so i got a new set of moog front an rear coil springs im wondering about the top rubber mounts for them i seen that energy suspension makes poly isolators should i use these or just get oem rubber ones moog also has those as well
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Old Nov 8, 2012 | 07:10 PM
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//<86TA>\\'s Avatar
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From: Central NJ
Car: 86 Trans Am
Engine: 408 stroker sbc
Transmission: TKO600
Axle/Gears: Moser full floater m9, 3:70 trutrac
Re: Poly or rubber isolators for springs

either one is fine, they are usually just for noise reduction.
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Old Nov 8, 2012 | 08:29 PM
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From: Litchfield Park
Car: '91 1LE
Engine: 377 w/Stealthram
Transmission: T56
Axle/Gears: 3.42 Torsen
Re: Poly or rubber isolators for springs

I just used a piece of heater hose to lower the car a bit.
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Old Nov 8, 2012 | 08:30 PM
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From: Central Texas
Car: GTA
Engine: 350 TPI
Transmission: 700R4
Axle/Gears: Aussie 9-bolt/3.27 posi
Re: Poly or rubber isolators for springs

I say just leave them out unless your in a snowy/icy climate. I have taken them out on every 3rd gen I've had, when I lowered it.
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Old Nov 8, 2012 | 09:21 PM
  #5  
soarestransam's Avatar
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From: New Bedford MA
Car: 1988 Gta trans am
Engine: LR4 4.8
Transmission: 98-02 t56 6 speed
Axle/Gears: Bw 9 bolt (3.70’s) pbr rotors
Re: Poly or rubber isolators for springs

I am in a snowy climate new England (ma) but the car doesnt get driven in the winter this is the time to do all new upgrades an performance modds etc etc but if running them with out the isolators they wont clunk rattle or shake when hitting bumps an etc i dont wanna hear clunking while driving
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Old Nov 8, 2012 | 09:31 PM
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From: Central Texas
Car: GTA
Engine: 350 TPI
Transmission: 700R4
Axle/Gears: Aussie 9-bolt/3.27 posi
Re: Poly or rubber isolators for springs

No clunking unless they have gotten so short they they are now loose, but then the shocks would have to be completely bottomed out ?& ruined for the springs to rattle. Otherwise they will be too tall & compressed between the mounts & you'll be fine. The only rattle I have is from a bad rod-end in my rear suspension because I replaced all my rubber stuff with rod ends back there.
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Old Nov 8, 2012 | 09:50 PM
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soarestransam's Avatar
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From: New Bedford MA
Car: 1988 Gta trans am
Engine: LR4 4.8
Transmission: 98-02 t56 6 speed
Axle/Gears: Bw 9 bolt (3.70’s) pbr rotors
Re: Poly or rubber isolators for springs

Ill definitely do that then an hope it will lower the car alittle bit as well not that big of fam with lowered 3rd gen especially with the roads here in new england i would lose the air dam everytime pulling in a driveway
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Old Nov 8, 2012 | 09:55 PM
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From: Central Texas
Car: GTA
Engine: 350 TPI
Transmission: 700R4
Axle/Gears: Aussie 9-bolt/3.27 posi
Re: Poly or rubber isolators for springs

Originally Posted by soarestransam
Ill definitely do that then an hope it will lower the car alittle bit as well not that big of fam with lowered 3rd gen especially with the roads here in new england i would lose the air dam everytime pulling in a driveway
If your against a lowered car, then don't take them out. Taking them out won't lower it a whole lot...Maybe 1/2"-3/4". But if you got bad roads & don't wanna lose ground clearance? Leave them in.

And might as well go with polyurethane ones since they will last longer & not compress as much (compression = lowering).
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Old Nov 9, 2012 | 10:39 PM
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From: New Bedford MA
Car: 1988 Gta trans am
Engine: LR4 4.8
Transmission: 98-02 t56 6 speed
Axle/Gears: Bw 9 bolt (3.70’s) pbr rotors
Re: Poly or rubber isolators for springs

Yea i think im just gonna get the rubber ones an call it at that ill also try it with heater hose an see how it sits who knows i might like the stance of it since it will lower a tad bit would i have to use lca relocation brackets i seen something about that is a must when the car is lowered also about the adjustabe lca an phb
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Old Nov 9, 2012 | 10:45 PM
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From: Central Texas
Car: GTA
Engine: 350 TPI
Transmission: 700R4
Axle/Gears: Aussie 9-bolt/3.27 posi
Re: Poly or rubber isolators for springs

LCA relocation brackets are far from being a must for lowered cars. I hve only had 1 3rd gen that I put those on & all have been lowered. Unless your really into drag race style launches? You don't need them.

And look at the angle of your LCAs before you get them in any case. Unless the body mount is really that much lower than the axle mount? You'll have no need for them. Run your car without them first & see how it goes. Since your not really wanting to go LOW? I don't think you'll ever need them.
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