Re: Moog UCA offset bushings
[Re: runningman]
#429193
08/05/09 03:13 PM
08/05/09 03:13 PM
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Joined: Nov 2004
Posts: 9,312
SoCal
68HemiB
master
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master
Joined: Nov 2004
Posts: 9,312
SoCal
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Here is the oft-posted picture.
You might have seen one of my replies to a post, and the admonition to "ignore those directions and follow these directions" can indeed cause some concern. Here is a revisit, along with an explanation.
The offset bushing were originally marketed as "problem solvers" to solve the problem of "not enough camber". Therefore, some packages will include printed installation instructions to that end. Rather than try to remember by rote which instructions are the wrong ones, and which are the right ones, consider getting the concept straight. That way, it doesn't matter if you have your computer [or that screen print] handy or not when it comes time to do the job.
The bushings shift the control arm in the direction of the arrow molded into the rubber. If you install both the front and the rear bushings with the arrow pointing outward (as the included instructions might recommend), you are shifting the upper ball joint outboard, which is an increase in CAMBER. This isn't what you want.
If you install the front bushing pointing out, and the rear bushing pointing IN, you are shifting the upper ball joint rearward, which is an increase in CASTER. This IS what you want to do.
It's all about what direction you are moving the upper ball joint.
Down to just a blue car now.
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Re: Moog UCA offset bushings
[Re: 68HemiB]
#429195
08/05/09 03:31 PM
08/05/09 03:31 PM
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Joined: Jun 2004
Posts: 409
runningman
OP
super street
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super street
Joined: Jun 2004
Posts: 409
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Wow, thanks for the timely and educational responses! The ferrules I am talking about are not the sleeves that were on the back side of the bushings but metal washers that look to be pressed on the front and backs of the bushings. I will try and get a pic to post. Thanks again!
Matt
Last edited by runningman; 08/05/09 03:45 PM.
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Re: Moog UCA offset bushings
[Re: Lefty]
#429197
08/05/09 03:50 PM
08/05/09 03:50 PM
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Joined: Jan 2003
Posts: 27,467
So Cal
autoxcuda
Too Many Posts
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Too Many Posts
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Posts: 27,467
So Cal
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Quote:
Quote:
Here is the oft-posted picture.
But none the less important and with a good explanation of why... 
I think I wrote that explantion, IIRC. The picture above it with the red circles is Richard Ehernberg's from Mopar Action magazine.
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Re: Moog UCA offset bushings
[Re: 68HemiB]
#429199
08/05/09 05:04 PM
08/05/09 05:04 PM
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Joined: Jan 2003
Posts: 27,467
So Cal
autoxcuda
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 27,467
So Cal
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Quote:
Quote:
I think I wrote that explantion, IIRC.
You don't remember correctly.
One of us advocates excessive negative camber in inappropriate applications.
The other used to align cars for a living.
So did you write it? Looks like the text in photoshop LE I use. I can't remember. Maybe I'm thinking of the picture I have of the UCA installed on my car with similar instructions on it. 
I usually suggest a 1/4 or so degree negative, but more if you are into handling. The guys that ask for a handling setup or have handling parts on their car. I see a guy putting 17" rims on his car or a tubular UCA, or some sway bars..., I assume he want's to do some halfway agressive handling stuff. I think my assumption is wrong because it seems most are doing big rims just for looks and want to cruise around.
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Re: Moog UCA offset bushings
[Re: 68HemiB]
#429203
08/05/09 07:56 PM
08/05/09 07:56 PM
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Joined: Jun 2004
Posts: 409
runningman
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super street
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OP
super street
Joined: Jun 2004
Posts: 409
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Re: Moog UCA offset bushings
[Re: Gavin]
#429206
08/06/09 10:46 AM
08/06/09 10:46 AM
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Joined: Jun 2004
Posts: 409
runningman
OP
super street
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OP
super street
Joined: Jun 2004
Posts: 409
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Re: Moog UCA offset bushings
[Re: 68HemiB]
#429209
08/06/09 12:45 PM
08/06/09 12:45 PM
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Joined: Jun 2004
Posts: 409
runningman
OP
super street
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super street
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Posts: 409
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Quote:
Quote:
Yes, use the ferrules. They are a press fit in the bushing ends after installation. A vice will do it fine.
The accusation has been leveled that I often use more words than necessary.
Here goes again.
Standard UCA bushings have the ferrules delivered as part of the bushing. Their presence does not keep the mechanic from installing them, as the full diameter of the outer shell can easily be accessed by whatever pressing/pounding device he cares to employ. Furthermore, the rotational orientation of the bushing matters not.
Offset UCA bushings are delivered with the ferrules loose because:
1. It would be tough to see the arrow and get across the proper installation orientation.
2. Once installed, the ferrules would obstruct the outer shell of the bushings on the "close" side, preventing the pressing/pounding device to make full contact.
Install the bushings into the control arms, then smack/press the ferrules onto the bushings.
Thanks again for the great response!
Matt
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