DIY poly rear LCA bushings

[sonic24740]

I talked to TTR yesterday about making these. . They said I was actually the first person to ask them about it. And that they would put it on there list.. maybe if a few other people are interested in these email them. Maybe they can start makeing them for us..

 

[Italianjoe1]

Seeing this, coming from the cobalt world, it was a very common failure and upgrade point. I made my own set of spherical ball joint inserts after going through three sets of poly bushings. Poly just does not have the compliance necessary on that application. if there are people interested, I could produce the same setup for these cars, ballpark price was under $300 before, if there is interest I'll get a stock arm and measure for the pieces I need.

 

[Preloader]

Ill buy a set.

 

[cndctrdj]

How much interest would be needed to make the spherical ones

 

[Italianjoe1]

Would need a couple people that would actually pay for them, assuming they are gonna be about $300 for the set. Unfortunately they are not cheap to produce, especially in a small quantity, as it will be custom the first time and then CNC'd to replicate after. I have a great local machine shop that works with me but CNC/prototyping time is expensive. I'd probably need at minimum 10 (5 pairs) to price it out.

I can't find any of my old pics, believe they were on my laptop when the HD died a while back.

I basically made an aluminum carrier for a spherical ball joint that was assembled and pressed into the place of the stock bushing, eliminating all the slop while retaining full range of motion. Worked fantastically and is a setup normally used on track cars but in this application it was not harsh or nasty at all on the street.

 

[sx sonic]

If I wasn't laid off I'd be on this!!! spherical bearings rock for suspension parts.
Would they be greasable?

 

[cndctrdj]

I would be in for a set. I loved them in my cobalt. Made a world of difference

 

[Italianjoe1]

If I wasn't laid off I'd be on this!!! spherical bearings rock for suspension parts.
Would they be greasable?

Mine weren't but they shouldn't need it. I will see about using a sealed joint, again I didn't but i'm also in south FL so I don't have snow and really nasty weather like that to deal with. I'll try to make something that works well for everybody.

I'd need 5 people that were really serious to make it happen.

 

[rcmn0022]

I'd be done for a set but they need to be sealed and greased, or greasable. Maybe you could give a sketch or talk with DDM or TTR and get them to get them built up.

If TTR did them, it would be a great excuse to accidentally order the upper engine mount and the lower trans mount at the same time

 

[JohnT]

Encapsulating an spherical bearing in aluminum does get pricey. I haven't tried, but I've heard the road vibration is transferred quite a bit to the chassis.But

A cheap urethane bushing would be nice, like this:

But I'm mostly into the cheap mods myself since its not a car I want to pour money into, how are the urethane filled mounts holding up Vince? The whole control arm is $34 on GMpartsdirect...I might just order a couple extra to do this and or play with.

 

[Preloader]

Some of the poly has peeled, but I rushed it, because I needed to get my trans back in and bolted up and out of the shop.

Wow! $34 is cheap. Definitely experimental cheap.

 

[Italianjoe1]

For $35 i'm tempted to buy one and mock it up anyway. The set I made and the others i've installed, you don't get much vibration or whatever, you do feel the road a bit more but that's the idea, to eliminate the slop in the front suspension.

 

[Italianjoe1]

Talked with my machinist and it may work out to be under $200, would I have 5 people actually interested at that price? I'll have to total it up with the bushing costs for a final but it's definitely doable if people want to spend.

 

[Preloader]

Are we talking press-in bushings, or arm assemblys with bushings installed?

Both front and rear bushing?

I'd be interested in any of the above...... Just want a little clarity.

 

[rcmn0022]

I'm interested but I've been spending too much money on my car latey. I can't afford anymore

Count me out

 

[sx sonic]

Hey Vince how bout an update on the bushing mod?

How they holding up, how many miles have you put on them, etc?

 

[Preloader]

Not sure the mileage I did the mod. But they seem to be holding up fine.

I don't really toss the 'Loader around turns very aggressively with my current stance, lest I want to completely remove the letters from my KDW's. I'm in bad need of stiffer springs.

I will say that if I was going to do this mod again, I'd just use 3M window seal urethane. The McMaster Carr stuff was a bit messy and hard to work with.

 

[cndctrdj]

free bump for old thread... how is this mod holding up?

 

[ReeseLightning]

Did this idea ever get any more steam ? How is the mod holding up almost a year later Preloader?

 

[MyLonewolf25]

Btw just for a tip you can mark up and drill the rubber some to make the urethane hold better

Other than that
How's it holding up?

Spherical bearings still up from what Italianjoe said?



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