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Bushings for A bodies, whats best? #1159801
01/17/12 11:01 PM
01/17/12 11:01 PM
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Reno, Nevada
NV69B7RR Offline OP
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NV69B7RR  Offline OP
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Is it best to go with all polygraphite, or a mix of rubber and polygraphite?

Are rubber LCA bushings preferred?

I'm going to be replacing all the bushings on my 71 Duster 340 in the next month and thought I'd ask ahead of time. I'm looking to run some autocross and open track events in the future. I also plan to drive the car a lot.

Re: Bushings for A bodies, whats best? [Re: NV69B7RR] #1159802
01/17/12 11:23 PM
01/17/12 11:23 PM
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Posts: 4,442
Texas
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Daty Rogers Offline
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Rubber lca bushings are preferred(don't think poly is even available anymore). Poly uppers can be used, I went with the rubber Moog offset uppers to gain more caster than stock myself.

-Daty

Re: Bushings for A bodies, whats best? [Re: Daty Rogers] #1159803
01/18/12 12:36 AM
01/18/12 12:36 AM
Joined: Nov 2006
Posts: 6,005
Reno, Nevada
NV69B7RR Offline OP
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Thanks Daty!

What about the rear leaf spring bushings?

Re: Bushings for A bodies, whats best? [Re: Daty Rogers] #1159804
01/18/12 12:48 AM
01/18/12 12:48 AM
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Bitopia
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jcc Offline
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Quote:

Rubber lca bushings are preferred(don't think poly is even available anymore).
-Daty




"preferred" or accepted? And what about "delrin" LCA bushings?


Reality check, that half the population is smarter then 50% of the people and it's a constantly contested fact.
Re: Bushings for A bodies, whats best? [Re: jcc] #1159805
01/18/12 01:23 AM
01/18/12 01:23 AM
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Posts: 4,302
Nebraska
72Swinger Offline
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Firm Feel is where to get LCA bushings and some greasable LCA pins. Id skip the rubber.


Mopar to the bone!!!
Re: Bushings for A bodies, whats best? [Re: jcc] #1159806
01/18/12 01:39 AM
01/18/12 01:39 AM
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Posts: 4,442
Texas
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Daty Rogers Offline
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Quote:

Quote:

Rubber lca bushings are preferred(don't think poly is even available anymore).
-Daty




"preferred" or accepted? And what about "delrin" LCA bushings?




Poly lcas failed miserabibly. Great idea, wore out too quickly, Don't know about delrin, it came out about the same time I built my front end. A little gunshy, rubber worked great for me, just don't tighten it before you get it on the ground. As far as handling, rubber below, Moog offset up top on stock lca's you're golden. Wish Moog made poly for the top, that would have worked very well, less movement.

-Daty

Re: Bushings for A bodies, whats best? [Re: 72Swinger] #1159807
01/20/12 05:36 PM
01/20/12 05:36 PM
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California, USA!!!
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WheelsUp73 Offline
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Quote:

Firm Feel is where to get LCA bushings and some greasable LCA pins. Id skip the rubber.




Exactly. We went with upper aftermarket arms with heimjoints and the firmfeel nylon lower bushing and their greasable pins,also installed solid mounted strut rods. Car drives awesome now. Rubber deflects too much. Here is a video of my car comming down from a 150 foot wheelstand.Tires are very stable at landing.
http://youtu.be/LWD9sbw_UWk

Re: Bushings for A bodies, whats best? [Re: Daty Rogers] #1159808
01/20/12 06:49 PM
01/20/12 06:49 PM
Joined: Jan 2003
Posts: 27,468
So Cal
autoxcuda Offline
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Quote:

Quote:

Quote:

Rubber lca bushings are preferred(don't think poly is even available anymore).
-Daty




"preferred" or accepted? And what about "delrin" LCA bushings?




Poly lcas failed miserabibly. Great idea, wore out too quickly, Don't know about delrin, it came out about the same time I built my front end. A little gunshy, rubber worked great for me, just don't tighten it before you get it on the ground. As far as handling, rubber below, Moog offset up top on stock lca's you're golden. Wish Moog made poly for the top, that would have worked very well, less movement.

-Daty




I have the same Poly LCA bushing I put on in 1997. We looked at them last year when we put the Hotchkis TVS stuff on and Hotchkis said just reuse them. And there were new poly LCA bushings setting right there in thier kit we didn't use.

.
.
.
Now...I had a horrible time making the Mopar poly LCA bushings fit to "what I thought was right" in 1997.

They did not want to press in by hand with a lot of force. I had to turn down the OD of the poly bushing and polished and enlarged the ID of the old rubber bushing casing.

I also polished the LCA pin shaft too. Then all of that was slather with that special snotty translucent poly bushing grease they give you. I actually bought a seperate mini container of that grease.

IMHO, I bet a lot of people don't go to that effort to get the poly LCA to fit right if they have issues like or near what I did. I also know people that didn't have any ploblems slipping the bushing in. I believe that is because different manufactures of rubber LCA bushings might have different metal casing thinknesses. Also they are not designed to have the ID of the casing as a critical dimension. But when we put poly bushing in there it becomes critical.

Energy Suspension now sells complete poly bushing assemblies for most all applications with metal casings and all(excect Mopar LCA's). BUT before that you had bear poly bushings to put in the old rubber casings.

In about 1988 Dick Guldstand had those bare poly bushing like that for all Corvette, Camero, and GM A-body applications. I remember installing them in our GM A-body racecar that my High School shop teacher had. But a couple of years later Guldstand totally sold Energy kits. They said so many people had issues fitting the bare bushings that they switched to selling all Energy stuff where they could.

Last edited by autoxcuda; 01/20/12 07:05 PM.
Re: Bushings for A bodies, whats best? [Re: autoxcuda] #1159809
01/20/12 06:56 PM
01/20/12 06:56 PM
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California, USA!!!
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WheelsUp73 Offline
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Quote:

Quote:

Quote:

Quote:

Rubber lca bushings are preferred(don't think poly is even available anymore).
-Daty




"preferred" or accepted? And what about "delrin" LCA bushings?




Poly lcas failed miserabibly. Great idea, wore out too quickly, Don't know about delrin, it came out about the same time I built my front end. A little gunshy, rubber worked great for me, just don't tighten it before you get it on the ground. As far as handling, rubber below, Moog offset up top on stock lca's you're golden. Wish Moog made poly for the top, that would have worked very well, less movement.

-Daty




I have the same Poly LCA bushing I put on in 1997. We looked at them last year when we put the Hotchkis TVS stuff on and Hotchkis said just reuse them. And there were poly LCA bushing in thier kit.

Now...I had a horrible time making the Mopar poly LCA bushings fit to "what I thought was right"

They did not want to press in by hand with a lot of force. I had to turn down the OD of the poly bushing and polished and enlarged the ID of the old rubber bushing casing.

I also polished the LCA pin shaft too. Then all of that was slather with that special snotty translucent poly bushing grease they give you. I actually bought a seperate mini container of that grease.

[image][/image]




On the bushing fitting the shell, we honed the shell till the bushing fit snug. The hole in that shell is nowhere close to being round and the honing helped true up the hole.The lower arm pivots nice and free now.

Re: Bushings for A bodies, whats best? [Re: WheelsUp73] #1159810
01/20/12 07:03 PM
01/20/12 07:03 PM
Joined: Jan 2003
Posts: 27,468
So Cal
autoxcuda Offline
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Quote:


On the bushing fitting the shell, we honed the shell till the bushing fit snug. The hole in that shell is nowhere close to being round and the honing helped true up the hole.The lower arm pivots nice and free now.




So even with the Firm Feel nylon/delin bushings you still had to fit the old rubber bushing shell to get a nice free running bearing movement.

Sorry, I edited and added above about my little history with those type of bushings.

Re: Bushings for A bodies, whats best? [Re: autoxcuda] #1159811
01/20/12 07:14 PM
01/20/12 07:14 PM
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Posts: 369
California, USA!!!
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WheelsUp73 Offline
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Quote:

Quote:


On the bushing fitting the shell, we honed the shell till the bushing fit snug. The hole in that shell is nowhere close to being round and the honing helped true up the hole.The lower arm pivots nice and free now.




So even with the Firm Feel nylon/delin bushings you still had to fit the old rubber bushing shell to get a nice free running bearing movement.

Sorry, I edited and added above about my little history with those type of bushings.




Yes we did it was worth the extra time spent.

Re: Bushings for A bodies, whats best? [Re: WheelsUp73] #1159812
01/20/12 07:43 PM
01/20/12 07:43 PM
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Nebraska
72Swinger Offline
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Your wife ain't scared^^^^^! I've seen those vids of her shifting mid wheelie Awesome! I used Firm Feel greasable pins with no inner shell and the stock outer shell with Energy bushings. Tight yet free movement.


Mopar to the bone!!!
Re: Bushings for A bodies, whats best? [Re: 72Swinger] #1159813
01/20/12 07:52 PM
01/20/12 07:52 PM
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WheelsUp73 Offline
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Quote:

Your wife ain't scared^^^^^! I've seen those vids of her shifting mid wheelie Awesome! I used Firm Feel greasable pins with no inner shell and the stock outer shell with Energy bushings. Tight yet free movement.



No I'm not scared. LOL Its dissapointing if it don't carry the wheels at least 100 feet.:) Here is a new pic of the back of the car. My husband was the scared one watching those big wheelies from outside the car. You can see in the pic where it use to drag on the ground.
http://i177.photobucket.com/albums/w203/slcalddrag/DSCN0185.jpg

Re: Bushings for A bodies, whats best? [Re: WheelsUp73] #1159814
01/20/12 07:59 PM
01/20/12 07:59 PM
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Nebraska
72Swinger Offline
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Quote:

Quote:

Your wife ain't scared^^^^^! I've seen those vids of her shifting mid wheelie Awesome! I used Firm Feel greasable pins with no inner shell and the stock outer shell with Energy bushings. Tight yet free movement.



No I'm not scared. LOL Its dissapointing if it don't carry the wheels at least 100 feet.:)


I'm not worthy.....


Mopar to the bone!!!
Re: Bushings for A bodies, whats best? [Re: 72Swinger] #1159815
01/20/12 09:15 PM
01/20/12 09:15 PM
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ahy Offline
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I and many/most others would say poly for everything except the LCA's. The poly bushings don't hold the LCA like rubber do. If all geometry including strut rod length, bushing thichness isn't right poly's can have slop and let the LCA move around.

Adjustable strut rods can fix the slop. I'm running all greasable poly (FF) on an E and needed the adjustable rods to get it all tight. It works great and has held up well. With rubber, adjustable rods are probably not necessary.

Re: Bushings for A bodies, whats best? [Re: ahy] #1159816
01/21/12 12:28 AM
01/21/12 12:28 AM
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Posts: 4,395
The Pale Blue Dot
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I remember talking to Dick from Firm Feel a few years back @ one of the flings.He didn't think that there was much benefit in going poly on the LCA bushing, as they are not very thick, so there isn't much room to deflect. We were talking about street cars not dedicated race cars. I'm still leaning towards buying the greaseable LCA pins and nylon bushings for my car, since it's a toy, not a daily driver and I've got Bill Reilly's heim jointed strut rods, and will get the matching UCAs .

Re: Bushings for A bodies, whats best? [Re: NV69B7RR] #1159817
01/21/12 05:34 AM
01/21/12 05:34 AM
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Posts: 4,442
Texas
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Daty Rogers Offline
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Quote:

Thanks Daty!

What about the rear leaf spring bushings?




I used rubber back there, have no problems with it. I did use new ones though.

-Daty

Re: Bushings for A bodies, whats best? [Re: NV69B7RR] #1159818
01/24/12 11:16 AM
01/24/12 11:16 AM
Joined: Sep 2003
Posts: 1,688
Marlboro, NY, USA
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Rick_Ehrenberg Offline
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Don't neglect the Pedders urethane offset uppers. If you need the offset, these are way better than the Moog. 100% molded, assembles like stock.


Rick E.

Re: Bushings for A bodies, whats best? [Re: Rick_Ehrenberg] #1159819
01/24/12 11:39 AM
01/24/12 11:39 AM
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Gambrills, Md
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mopork Offline
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WOW Rick where do we get those bushings at ?

Re: Bushings for A bodies, whats best? [Re: mopork] #1159820
01/24/12 11:42 AM
01/24/12 11:42 AM
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Marlboro, NY, USA
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Rick_Ehrenberg Offline
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I think it is pedders.com.au

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