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Old 04-11-2012, 06:28 AM   #1
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losing rear drum weights?

OK... weirdest thing.... pull out of garage and here a "shhhhiiiing-"shiiing" coming from the rear of my Jeep.... as the wheels are rotating slowly.

Hmmm... jack it up and spin... yep... its the rear... sound like something loose in the rear brake...

I pop of the wheel and I see a DRUM WEIGHT fall to the floor. I was floating in the groove of the drum and held in by the wheel, just swooshing back and forth in the groove at the wheel rotated.....

Ever seen this before?

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Old 04-11-2012, 06:33 AM   #2
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Can't say I've ever seen it, but it's just tack welded on. I can see where it could be a lousy tack weld and fall off.

That might be a part of your vibes you've been feeling.

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Old 04-11-2012, 06:57 AM   #3
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Seen lots of those fall off. You'll never know the difference.
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Old 04-11-2012, 07:23 AM   #4
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I thought it could be related to my vibes... but I doubt it.... I tacked it back on... no difference.

Just never seen it happen before.... kinda odd.... I'm more leaning toward the vibe I'm chasing causing this rather than it causing the vibe now.

I do have some new parts coming... main output shaft and yoke for the T-case ( no charge, of course).

Once I get involved on that, I will set up my dial indicator and check runout on the output shaft. I hopeful I will solve my mistery.... crossing my fingers.

I have checked and rebalanced both shafts (rear is new CV and front all new components), checked backlash on the rear.... ran it with front shaft only, rear shaft only, both shafts.... rebalanced tires.... sigh. Vibes are constant.. coast AND drive.... accel and decell... neutral or not... frustrating... VERY prominent over 50mph.. barely felt under 45mph.... hard or soft accel makes no difference... almost smooth as silk to 45.. then the harmonic hum and rhythmic warble sound faintly starts and gets progressively worse.

Couple of things I need to check... trueness of rear carrier ring mating surface.... front may have a bent axle shaft... gonna swap in my known good front axle shafts and bearing hubs.

One thing at a time though... til I find the root cause....
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~Todd~ 2004 X 4.0 5 speed---SOLD
4" Lift, 4.56's, 33" Duratracs on M/T Classics
RR SYE, Tatton CV, MML, BL, TT, Dynomax Exhaust
Hella Lighting: Driving, Fogs and H4 E-Codes
NOPE! ... and NEVER will be...
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