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OE Upper Control Arm replacements for 88-91 preludes

General '88 - '91 Prelude Discussion
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1funryd United States of America
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OE Upper Control Arm replacements for 88-91 preludes

#1

Post by 1funryd » 03 Jan 2019, 23:42

(Original poster: 88SE Lude - Jon Blakeman - https://www.preludepower.com/forums/sho ... p?t=414537)


Essentially: 94-01 Acura Integra upper control arm bushings can replace the OE 3rd gen bushings but they need to be pressed in and out.
88SE Lude;3800249 wrote:OK as there is some discussion in non-specific threads I'll try to explain it all with pictures and words for those that may need some clarification.

There are various threads with a lot of this info and pics in already, this one will have new pics in addition to the old ones.

This is to show the differences (there are none) between the 3G Prelude upper arm control bushes and the ITR/Civic/Integra(DC2/EG/EK etc) front upper control arm bushes.
I'll probably use 'UCA bushes' to save some typing ;-)

I have used various types of UCA bush on my many 3G Ludes, some of them intended for the ITR/Civic.
This is not to suggest that all aftermarket bushes for the ITR/Civ will fit, certainly not without the possibilty of some modification.
This does mean that aftermarket bushes will fit the carriers but some other work may be needed, cutting, spacing etc.. to geta good working fitment.

This is to show that the stock rubber bushes for the ITR/Civ are identical and hence can replace, the stock rubber 3G Lude bushes.


I will post pics and explain them. Any questions please ask and I'll do my best to answer. Although it should be pretty simple for most people.

First set of pics show (in order l>r) :
ITR with arm, ITR , 3G Lude
Image

Same with vernier on ITR(with arm):
Image

With vernier on ITR carrier:
Image

With vernier on 3G Lude carrier:
Image


Now we have an end on view of the two carriers.
These show the diameter of the bushes/sleeves, which are the same

3G Lude top, ITR bottom:

Image

And with vernier:

Image
Image


Now we have side on shots that show the carrier and sleeve dimensions.
As you can see the ITR carrier is narrower than the 3G Lude carrier but the sleeve is exactly the same length.

ITR outer bush:
Image

ITR carrier:
Image

ITR sleeve:
Image

3G Lude carrier:
Image

3G Lude outer bush diameter is the same as the carrier.

3G Lude sleeve:
Image



As you can see from the pics the two bushes are identical in every way.
If you wish to argue this point then may I suggest an eye or sanity check first.



Here's a pic of some poly bushes in a 3G UCA. In this you can see that the sleeve is slightly shorter, this allows for the use of the large washers/spacers used with them.
Image




The next post will be using the old pics I took during a previous discussion where it became a little 'muddy'.
The two sets of pics should make it as clear as you could want.

2nd Part:
88SE Lude;3800257 wrote:These are the old pics used in an old post. These were questioned and argued against.
Let's see if they add anything to the above post.



This shows an ITR bush, a 3G Lude carrier, an ITR carrier:
Image

This is an ITR bush (top) & 3G Lude bush with the outer metal sleeve missing:
Image

And ITR bush(left, 3G Lude bush (right);
Image


Here are the component parts of the carriers and braces. ITR left, Lude right.
You can see the outer metal sleeve still in the Lude carrier.
Image
Image


Here are the two bushes together. The complete one is the ITR part, the seperated part is the Lude bush.
You can see that the outer metal sleeves are the same but the ITR part has a thicker band of rust due to thge narrower carrier.
Image


And here they are like ducks in a row:
Image


And one of ther cutaway part of the Lude outer metal sleeve on the ITR carrier showing the difference in width.
Image

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