Frame shackles bushing getting destroyed - JeepForum.com

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post #1 of 20 Old 09-16-2013, 06:02 AM Thread Starter
bogleparsons
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Frame shackles bushing getting destroyed

I seem to have an issue destroying bushing in my grease-able boomerang shackles. The bushings that go in the frame mount aren't lasting long at all.

I torqued them to 50ft/lbs but seem to destroy them in just a few outings.

Any insight would be great. Maybe I have the wrong size bushing because the ones I used are tapered like a mushroom but the lower (spring) side of the shackle looks like a more flat bushing.

I will post pics this afternoon.


If it's not supposed to move and does use duct tape.
If it's supposed to move and doesn't use WD40
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post #2 of 20 Old 09-16-2013, 10:59 AM
booboowv77
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Are they rubber or poly? My rubber ones only lasted about 3 months, but my poly ones have been going for about 6 months now and are just fine.

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post #3 of 20 Old 09-16-2013, 11:20 AM Thread Starter
bogleparsons
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To be honest, I don't know.

I will definitely buy poly after I use these last 2 i have laying around.

If it's not supposed to move and does use duct tape.
If it's supposed to move and doesn't use WD40
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post #4 of 20 Old 09-16-2013, 11:36 AM
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poly is normally colored (red) rubber is normally black.

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post #5 of 20 Old 09-16-2013, 11:44 AM Thread Starter
bogleparsons
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ah, all mine are black.

If it's not supposed to move and does use duct tape.
If it's supposed to move and doesn't use WD40
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post #6 of 20 Old 09-16-2013, 12:43 PM
Sparrows
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How long is the inner sleeve? I believe it should be slightly longer than the bushing on either side and the shackles should contact that and not so much the bushing.

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post #7 of 20 Old 09-16-2013, 01:19 PM
squarelite
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Quote:
Originally Posted by booboowv77
poly is normally colored (red) rubber is normally black.
My poly bushings are black. Poly comes in all sorts of colors
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post #8 of 20 Old 09-16-2013, 01:41 PM
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Quote:
Originally Posted by Sparrows View Post
How long is the inner sleeve? I believe it should be slightly longer than the bushing on either side and the shackles should contact that and not so much the bushing.

Cheers

i noticed this when i was installing mine a few years ago. i bet this is the reason yours are wearing out, probably rubbing as the suspension droops and lifts

I don't feel like working on anything at this time so i sold my yj.
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post #9 of 20 Old 09-17-2013, 03:58 AM Thread Starter
bogleparsons
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You guys are right my sleeve is like 1/2" from the end on each side. If this is the reason great catch!

Weird I bought these shackles last year and they came with all the hardware.

If it's not supposed to move and does use duct tape.
If it's supposed to move and doesn't use WD40
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post #10 of 20 Old 09-17-2013, 11:44 AM
Sparrows
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Quote:
Originally Posted by bogleparsons View Post
You guys are right my sleeve is like 1/2" from the end on each side. If this is the reason great catch!

Weird I bought these shackles last year and they came with all the hardware.
Yup, there's your problem! They should stick out maybe a 1/16" on each side. The shackles should ride on the sleeve. The bushing is there to isolate the movement from the frame and not for the shackles to rest on.

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post #11 of 20 Old 09-17-2013, 04:53 PM
instg8tor
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I could be wrong, but its my understanding that rubber bushings don't have the metal sleeve past the rubber - only the poly's have a longer sleeve

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post #12 of 20 Old 09-17-2013, 10:40 PM
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1/16 that sounds like a lot. I may have to revisit my bushings.

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post #13 of 20 Old 09-18-2013, 12:39 AM
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Quote:
Originally Posted by Dake View Post
1/16 that sounds like a lot. I may have to revisit my bushings.
By 1/16" I mean just a hair. Just enough to keep the shackle from riding on the bushing....

Cheers

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post #14 of 20 Old 09-18-2013, 11:21 AM
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WOW never knew...Mine stuck out just a 1/16th but my buddy who has an XJ told me that the metal sleeve shouldnt stick out or be flush with the bushing. Thats why I was having front end drivablity issues. So I ended up cutting the metal sleave so its inside the bushing 1/16 on each side.

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post #15 of 20 Old 09-18-2013, 11:27 AM
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I can't seem to find it but Anti had a nifty little paint mock up showing the proper set up....maybe he can chime in and give you a little visual

Cheers

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