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Old 11-05-2019, 11:27 AM
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Chasing a Rotational squeak

2009 JK with 3.5” lift, trussed and gusseted D44s, 4.88 gearing, Yukon chromally shafts, Tom woods driveshafts.


I have developed a rotational “squeak “ coming from (I think) a wheel (can’t tell which one yet).

Purely speed dependent, increases and decreases with speed. Braking or not makes no difference. Kicks in around 5-10mph. Might be subsiding around 40mph or it might be that I just can’t hear it anymore at that speed due to road noise etc..

I Couldn’t get it to replicate by lifting one wheel at a time and spinning the wheel so either I just couldn’t spin em fast enough or it might happen only when the wheels are loaded with the weight of the Jeep. I Have had each wheel off - no bent dust shields or rocks in calipers.

Could be a bearing but as I understand it they tend to “crunch” on turns rather than squeaking on straightaways ?

I’ve read a bunch of stuff trying to figure this out and it just muddies the waters.


Thoughts? Primary candidates?


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Old 11-05-2019, 12:22 PM   #2
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Could be ebrake. Try applying some ebrake while it is squeaking.

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Old 11-05-2019, 01:12 PM   #3
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If its the bearing it will start "humming" very soon.
Check brake shields - those get bent sometimes and touch the rotor.
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Old 11-06-2019, 10:23 AM   #4
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Also retorque your wheel lugs and brake component bolts. Could be a little loose somewhere
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Old 11-06-2019, 06:02 PM   #5
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Bent rear wheel flange causes the rotor to move the brake pad back and forth in the caliper. That little spring clip that holds the brake pad in place slides with it and squeaks. I had to replace the axle.
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