Rubber Bushings
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Member

Joined: May 2013
Posts: 408
Likes: 53
From: Sydney, Australia
Car: 1988 Trans Am
Engine: 305 TPI
Rubber Bushings
I want to replace all the bushings on my car. Everywhere I search online only brings up results for polyurethane and variations of that.
I'd much prefer to replace the old rubber ones with new rubber ones.
Can anyone help me out with where I can buy a complete set online?
Thanks.
I'd much prefer to replace the old rubber ones with new rubber ones.
Can anyone help me out with where I can buy a complete set online?
Thanks.
Supreme Member




Joined: Oct 2004
Posts: 4,528
Likes: 240
From: Henrietta NY
Car: 1984 Trans Am L69
Engine: Sniper EFI Powered 355
Transmission: WC T5 w/ Steel Support Plate
Axle/Gears: 3.42 10 Bolt Posi
Re: Rubber Bushings
I have never seen a kit for rubber only poly but you can buy them individually in rubber
https://www.rockauto.com/en/catalog/...469,suspension
https://www.rockauto.com/en/catalog/...469,suspension
Thread Starter
Member

Joined: May 2013
Posts: 408
Likes: 53
From: Sydney, Australia
Car: 1988 Trans Am
Engine: 305 TPI
Re: Rubber Bushings
I have never seen a kit for rubber only poly but you can buy them individually in rubber
https://www.rockauto.com/en/catalog/...469,suspension
https://www.rockauto.com/en/catalog/...469,suspension
Supreme Member




Joined: Sep 1999
Posts: 3,047
Likes: 826
From: Colorado USA
Car: '83 Firebird (T/A Clone)
Engine: 350 with L-69 components
Transmission: 700R-4, 2000 RPM stall converter
Axle/Gears: 10-bolt/3.73 ..
Re: Rubber Bushings
I'd use rubber on everything except torque arm and sway-bars...
Joined: Feb 2001
Posts: 8,494
Likes: 414
From: Sophia, NC
Car: 2016 Camaro SS + 1986 Z28
Re: Rubber Bushings
Go poly you will not regret it
I'd use rubber on everything except torque arm and sway-bars...
Joined: Oct 2014
Posts: 751
Likes: 110
Car: 1984 Z28
Engine: 305 HO
Transmission: 5 Speed
Axle/Gears: 3.23 Truetrac; was better w/ 3.73
Re: Rubber Bushings
The Rock Auto AC Delco packaged rubber bushings all fit well on my ‘84. Everything matched the stock originals.
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Re: Rubber Bushings
I redid my front suspension with all rubber from rock auto. Car handles great and feels incredibly planted on the road. Went with rubber over poly because I was looking more for a smooth ride than feeling every vibration.
Here is. link I put up after the project. I also did new springs and shocks, certainly part of the handling improvement.
https://www.thirdgen.org/forums/susp...uspension.html
Here is. link I put up after the project. I also did new springs and shocks, certainly part of the handling improvement.
https://www.thirdgen.org/forums/susp...uspension.html
Joined: Oct 2014
Posts: 751
Likes: 110
Car: 1984 Z28
Engine: 305 HO
Transmission: 5 Speed
Axle/Gears: 3.23 Truetrac; was better w/ 3.73
Re: Rubber Bushings
I agree with it handling well after new rubber bushings. These cars already handle well, with plenty of NVH to boot. Tires probably matter much more than bushing material.
Last edited by Saxondale; Mar 15, 2021 at 08:44 PM.
Thread Starter
Member

Joined: May 2013
Posts: 408
Likes: 53
From: Sydney, Australia
Car: 1988 Trans Am
Engine: 305 TPI
Re: Rubber Bushings
I redid my front suspension with all rubber from rock auto. Car handles great and feels incredibly planted on the road. Went with rubber over poly because I was looking more for a smooth ride than feeling every vibration.
Here is. link I put up after the project. I also did new springs and shocks, certainly part of the handling improvement.
https://www.thirdgen.org/forums/susp...uspension.html
Here is. link I put up after the project. I also did new springs and shocks, certainly part of the handling improvement.
https://www.thirdgen.org/forums/susp...uspension.html
Thread Starter
Member

Joined: May 2013
Posts: 408
Likes: 53
From: Sydney, Australia
Car: 1988 Trans Am
Engine: 305 TPI
Thread Starter
Member

Joined: May 2013
Posts: 408
Likes: 53
From: Sydney, Australia
Car: 1988 Trans Am
Engine: 305 TPI
Thread Starter
Member

Joined: May 2013
Posts: 408
Likes: 53
From: Sydney, Australia
Car: 1988 Trans Am
Engine: 305 TPI
Re: Rubber Bushings
Rock auto have the most vague listings, can anyone confirm if their listings for bushings like front and rear control arms come as pairs or are they single bushings ?
Supreme Member




Joined: Sep 1999
Posts: 3,047
Likes: 826
From: Colorado USA
Car: '83 Firebird (T/A Clone)
Engine: 350 with L-69 components
Transmission: 700R-4, 2000 RPM stall converter
Axle/Gears: 10-bolt/3.73 ..
Re: Rubber Bushings
Hope that helps!
Joined: Jun 2001
Posts: 8,028
Likes: 93
From: DC Metro Area
Car: 87TA 87Form 71Mach1 93FleetWB 04Cum
Re: Rubber Bushings
Poly bushings (with lube) change how the suspension works, factory rubber bushings actually stick in their pockets and when things like control arms move up and down they twist rather than pivot- the rubber adds to the spring rate and somewhat to the shock dampening. Poly is stiffer and can stick or slip, making it inconsistent unless you lube all of it and just make sure all of it slips/pivots. In theory, the rubber bushings add a bit of a variable spring rate to the suspension that poly does not. Of course in practice, poly will last longer and be more consistent when installed correctly in most applications. I say most because recently I've run across a few different brands of poly end link bushings that fall apart and disintegrate MUCH faster than anything that I've seen before.
Supreme Member




Joined: Sep 1999
Posts: 3,047
Likes: 826
From: Colorado USA
Car: '83 Firebird (T/A Clone)
Engine: 350 with L-69 components
Transmission: 700R-4, 2000 RPM stall converter
Axle/Gears: 10-bolt/3.73 ..
Thread Starter
Member

Joined: May 2013
Posts: 408
Likes: 53
From: Sydney, Australia
Car: 1988 Trans Am
Engine: 305 TPI
Re: Rubber Bushings
Thread Starter
Member

Joined: May 2013
Posts: 408
Likes: 53
From: Sydney, Australia
Car: 1988 Trans Am
Engine: 305 TPI
Re: Rubber Bushings
Thanks for the clarification! I'm in Australia so I can't afford to make mistakes when ordering from the US.
Joined: Jan 2005
Posts: 1,405
Likes: 200
From: S. UTAH
Car: 1989 IROC-Z 305 LB9 AT Convertible
Engine: LB9 305
Transmission: AT
Re: Rubber Bushings
It is hard to out-engineer the vehicle manufacturers. Good quality rubber everywhere, except anti-sway bar END LINKS. Just like OE.
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