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Unread 09-16-2013, 06:02 AM   #1
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.

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Unread 09-16-2013, 10:59 AM   #2
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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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Unread 09-16-2013, 11:20 AM   #3
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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.
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Unread 09-16-2013, 11:36 AM   #4
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poly is normally colored (red) rubber is normally black.
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Unread 09-16-2013, 11:44 AM   #5
bogleparsons
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ah, all mine are black.
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Unread 09-16-2013, 12:43 PM   #6
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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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Unread 09-16-2013, 01:19 PM   #7
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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Unread 09-16-2013, 01:41 PM   #8
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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
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Unread 09-17-2013, 03:58 AM   #9
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.
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Unread 09-17-2013, 11:44 AM   #10
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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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Unread 09-17-2013, 04:53 PM   #11
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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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Unread 09-17-2013, 10:40 PM   #12
Dake
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1/16 that sounds like a lot. I may have to revisit my bushings.
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Unread 09-18-2013, 12:39 AM   #13
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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....

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Unread 09-18-2013, 11:21 AM   #14
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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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Unread 09-18-2013, 11:27 AM   #15
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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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