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Old 09-09-2012, 04:54 PM
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Shock bolt

Hi fellow jeepers, I have just fitted a full set of Rancho shocks to my WJ and found i have a clunking noise comming from the left rear could it be the standard shock bolts that i put back in ? if so could anyone recommend what oversize bolts to use, Regards peter.
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Old 09-09-2012, 05:05 PM
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Re: Shock bolt

Hey Pete. Top is the new full shouldered bolt,bottom is old.You can see why the old ones clunk.

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OK, fine...I'll admit...some amber lamps are good, and necessary.
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Old 09-09-2012, 05:21 PM
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Re: Shock bolt

Thankyou for the info cheapjeep, and yes the picture shows very well the problem, cheers thankyou again, Regards pete
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Old 09-09-2012, 06:58 PM
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Re: Shock bolt

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Thankyou for the info cheapjeep, and yes the picture shows very well the problem, cheers thankyou again, Regards pete
Just make sure you never seize the new ones real good. I actually think the old bolts were Jeep's twisted way of keeping the bolts from seizing to the shock bushings.
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Old 09-09-2012, 09:30 PM
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Re: Shock bolt

Thanks a bit of anti seize should help
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Old 10-06-2013, 01:47 AM
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Re: Shock bolt

Should I get a stainless steel bolt or a zinc plated hardened steel bolt?
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Old 10-06-2013, 07:59 AM
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Re: Shock bolt

Stay away from ss on bolts like this because they are only like grade 3 or something. Any steel M12-1.75x70 MM case hardened full shouldered bolt will be fine. Just make sure to use some kind of never seize.
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Old 10-09-2013, 02:54 PM
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Re: Shock bolt

First, let me introduce myself. I'm from Nashville, TN and proud, newly owner of a just purchased, used 2006 Jeep Grand Cherokee Ltd. 4.7 4x4 with rear end clunk when the slightest up or down motion to the suspension occurs. The slightest upward press from underneath the vehicle makes a single clunk, mostly from the rear passenger side. The sound is felt the most when a finger is on either the top or bottom of the shocks.

Yay....

The wk is in over-all good condition, albeit with high miles of 158,000. New GY Fortera HL tires. Aftermarket shocks on the rear: Gabriel Ultra with minor small rust spots.

So, yesterday I replaced the rear shock's, top and bottom, factory necked mounting bolts with Home Depot's M12-1.75x70mm Hex Cap Bolt with full shoulder, zinc, 8.8, with anti-seize (They were in stock at the second closest location from me.) I was also able to fit only one M12 flat washer in each top mount on the outside of the shocks, as that one was hard enough to get in. Torqued to 70 ft lbs on top; 85 ft lbs on bottoms.

IT WORKED!!! NO CLUNKING!

It WAS so nice...

It started again after less that 24 hrs and 100 miles of city/hwy, the exact same sound. While installing them yesterday, the rubbers looked in fine shape (nothing looked to be busted or anything obvious.) The metal cylinder (shock mounting bolt sleeve) in the shock heads that the bolt goes through were a bit rusted. I wd-40'd them and simply wiped the inside. The sleeves were also slightly positioned outside of the bushing so the inward side was recessed. I centered them mostly. I did notice the frame mounts bent inwards some after torqueing them down... However, at the time the clunk was gone. That's all I cared.

So, before I go redo all that I just did, any suggestions?
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Old 10-27-2013, 02:20 PM
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Re: Shock bolt

Should of burned the OEM center bushing out the of the shocks.

thats what i did when I lifted my WJ. Perfect Fit.
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Old 10-27-2013, 02:31 PM
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Re: Shock bolt

I wish I could have. I bought the Jeep with the aftermarket suspension already installed. I have been looking around at a local four wheels part store and other suspension shops for factory sleeves. I Was given some that probably came from a Jeep Wrangler. I also got some Energy Suspension poly bushings. I am waiting to do the repair to try to find the OEM sleeves so I don't have to do any major cutting in shaping of the sleeves I have. Any other suggestions that could be helpful?
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