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Install of offset UCA bushings?

Posted By: roe

Install of offset UCA bushings? - 05/02/13 09:33 PM

I only come across rubber bushings that are offset. I thought I saw someone post a link to poly offset bushings but can't find the thread. 71 B body

roe
Posted By: autoxcuda

Re: Does anyone make poly offset UCA bushings? - 05/02/13 09:39 PM

I believe there is an Australian company that does. Very expensive, IIRC. Not worth it, IMHO.

Maybe try searching Pedders in Australia to start.
Posted By: moparpollack

Re: Does anyone make poly offset UCA bushings? - 05/03/13 12:52 AM

Yup Pedders and they are $125-$150 for four bushings.
Posted By: BDW

Re: Does anyone make poly offset UCA bushings? - 05/03/13 03:49 AM

Geeze, at that price, you might as well buy new UCA's.
Posted By: roe

Re: Does anyone make poly offset UCA bushings? - 05/03/13 04:20 AM

Yep guys that's them, thanks. But at that price I would just buy some tubular control arms. Just ordered some rubber offsets by moog.

roe
Posted By: autoxcuda

Re: Does anyone make poly offset UCA bushings? - 05/03/13 05:26 AM

Quote:

Yep guys that's them, thanks. But at that price I would just buy some tubular control arms. Just ordered some rubber offsets by moog.

roe




The moogs will be fine.

The offsets put the imaginary line of the front and rear bushings at a large offset. So there needs to be some give in the bushings or there will be a bind. I don't think the bind is a safety issue with poly bushings, it just can make the UCA travel less fluidly with uneven resistance.
Posted By: therocks

Re: Does anyone make poly offset UCA bushings? - 05/03/13 11:25 AM

Just remember to install them opposite of the instructions.Rocky
Posted By: roe

Re: Does anyone make poly offset UCA bushings? - 05/03/13 01:20 PM

I knew there was something to the install too. I remember that thread, I'll have to find it but IIRC, the general theme was just what you just said. Install differently than instructions tell you to.
Posted By: roe

Re: Does anyone make poly offset UCA bushings? - 05/27/13 07:22 PM

My offset bushings showed up today, and Im planning on installing them according to this diagram that I've seen posted in other threads.

But Im sitting here trying to visualize install, and it seems that if I follow this, then the uca would have the front move towards the frame, and the rear move towards the fender, which would make the balljoint move foward which is the opposite of what I want. Or do I have this backwards?

If I want to shift the front of the uca towards the fender then wouldn't I want the fat part of the front bushing closest to the frame? Wouldnt THAT make the mounting hole for the uca move outward?
Posted By: roe

Re: Does anyone make poly offset UCA bushings? - 05/27/13 07:28 PM

Threads that I've pulled up say the the bushing moves the uca in the direction of the arrow, but looking at it, it would seem to move it the opposite.


Nevermind, it just clicked. Where is the DOH smiley smacking himself on the head?

roe
Posted By: RapidRobert

Re: Does anyone make poly offset UCA bushings? - 05/27/13 10:57 PM

Quote:

The offsets put the imaginary line of the front and rear bushings at a large offset. So there needs to be some give in the bushings or there will be a bind.


Steve, on a DD 65 dart I have DR camber neg .2 & caster pos .1 Pass camber neg .2 (same) but caster neg 2.4. would you suggest I add an offset bushing to the pass front UCA leg to kick the spindle around rearward or use both bushings to move both ends outward (more positive camber) then align accordingly to get the caster the same as the dr side
Posted By: autoxcuda

Re: Does anyone make poly offset UCA bushings? - 05/28/13 01:36 AM

Quote:

Quote:

The offsets put the imaginary line of the front and rear bushings at a large offset. So there needs to be some give in the bushings or there will be a bind.


Steve, on a DD 65 dart I have DR camber neg .2 & caster pos .1 Pass camber neg .2 (same) but caster neg 2.4. would you suggest I add an offset bushing to the pass front UCA leg to kick the spindle around rearward or use both bushings to move both ends outward (more positive camber) then align accordingly to get the caster the same as the dr side




If you are at the limits of adjustments, yes.

You have a split of 2.5 degrees of cross caster (difference in caster). That's too much.

Do you have a thick poly strut bushing on the passenger side?
Posted By: RapidRobert

Re: Does anyone make poly offset UCA bushings? - 05/28/13 01:55 AM

Yes I was at the limits. I told the guy to get zero camber & as much positive caster as he could & that's what he came up with. He opionated that something might be bent but nothing jumped out at me when I put it together from scratch from a roller. I dont remember if I used any poly but I think I was sitting on the kit for quite awhile & used it & it was all rubber. EDIT Would you suggest 1 or both offset bushings?
Posted By: therocks

Re: Does anyone make poly offset UCA bushings? - 05/28/13 01:13 PM

RR remember they had bias tires and different specs.My 65 B body had like neg 4 degrees caster.I installed the offsets on both sides and I got close to 0 caster.Nothing bent just the way they were built back then.I couldnt get camber right with stock either.I did the alingnment myself at work.So I know it was right and all I could get.Do both sides and set the side that gives you the least positive caster first.Then do the other side to match it.Rocky
Posted By: RapidRobert

Re: Does anyone make poly offset UCA bushings? - 05/28/13 02:44 PM

I had always understood that positive caster was the way to go. If neg is better I could have had him set the dr side to the same neg caster that the pass has assuming it could have been achieved. It's power steering & rides OK but I'm just anal about things but I'll probably get over it, that & it's up for sale
Posted By: dogdays

Re: Does anyone make poly offset UCA bushings? - 05/28/13 05:54 PM

Positive caster gets the car going straight down the road with some increase in steering effort. It has always been better. Negative caster was primarily to reduce steering effort.

It was a big deal when the '73 Monte Carlo went to 3 - 5 degrees positive caster, I remember it well.

R.
Posted By: autoxcuda

Re: Does anyone make poly offset UCA bushings? - 05/28/13 08:45 PM

Quote:

Yes I was at the limits. I told the guy to get zero camber & as much positive caster as he could & that's what he came up with. He opionated that something might be bent but nothing jumped out at me when I put it together from scratch from a roller. I dont remember if I used any poly but I think I was sitting on the kit for quite awhile & used it & it was all rubber. EDIT Would you suggest 1 or both offset bushings?




Both
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