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Jeep Grand Cherokee rear shock thump

Posted By: TC@HP2

Jeep Grand Cherokee rear shock thump - 05/21/18 04:39 PM

It seems the second generation Grand Cherokees, WJ, have a reputation for rear shocks to start thumping around after the OEM dampeners are replaced with aftermarket units. Common fix is to replaced the factory stepped bolts with a straight shank M12x1.75. Tried this in mine with no success. Even with the consistent shank diameter, there is <1mm of play between the
bolt and bushing that allows the clunking to continue as the suspension cycles. As a temp fix, I wrapped a layer of duct tape around the stock bolts to absorb the hit. Its working so far but eventually will get pounded out and the clunking will return.

Anyone found a successful and consistent fix for this? I've seen a few kits out there, but they are simply a steel sleeve with the aforementioned M12x1.75 full shank bolts. My replacement shocks already have a steel sleeve.
Posted By: ruderunner

Re: Jeep Grand Cherokee rear shock thump - 05/22/18 02:07 AM

Tighten them up
Posted By: TC@HP2

Re: Jeep Grand Cherokee rear shock thump - 05/22/18 11:33 PM

Okay. Is there a spec number I'm shooting for or just crank em tighter?

Probably need to get a FSM for this so I have those types of details.
Posted By: TC@HP2

Re: Jeep Grand Cherokee rear shock thump - 05/24/18 07:03 PM

Found out torque is a whopping 80#. I maybe had these cinched down to 30. So, I'll crank up the value and evaluate.
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