Drivetrain Transmission, LSD, Clutch, Driveline, Axles...

What am I?

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Old 06-19-2017, 11:57 AM
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What am I?

I make a front-end noise that's a loud low octave, constant, that gets louder with speed.
One wheel bearing replaced 1.5 years ago with a Timken bearing.
The other bearing replaced two weeks ago and noise exists both before and after.
Sound not effected by turning the steering wheel, even on hard sharp turns.
Tires rotated diagonally, front corner to opposite rear corner, yet sound remains the same, coming from the front.
Sound is the same with the front wheel lifted up off the ground.
Sound remains when clutch is disengaged.
No shake, or rumble felt in the steering wheel.
No shake or wobble when brakes are pressed.
Noise just always there, and effected by speed.

Thoughts?
Old 06-19-2017, 12:11 PM
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Does it sound like an airplane engine or motorcycle engine?
Old 06-19-2017, 01:09 PM
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Umm. no, I wouldn't say that. Not sure how to exactly describe it, but when I think motorcycle I think like a "braght, braght, braght" sound. This is more constant, and becomes and the sound increases equally with the speed.
Old 06-19-2017, 01:12 PM
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like a dull noise?

im only asking because I have a similar issue with my 06 SS.
Old 06-19-2017, 01:26 PM
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Originally Posted by leemanfor
like a dull noise?

im only asking because I have a similar issue with my 06 SS.
Umm, depends what you mean by dull. It's not sharp, like high frequency.
It's a low frequency sound, but it's loud enough that it's annoying when you drive, and can still be heard with the stereo on. Just not 100% on what it could be.
Read through lots of threads, but each thing people are looking for, to help determine if it's this or that, doesn't seems to eliminate it for likely being that, so not totally sure what it is.
Old 06-19-2017, 02:38 PM
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could be the bearings inside the transmission
Old 06-19-2017, 10:59 PM
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Check the axle intermediate shaft bearing. Makes a very wheel bearing-ish sound when it fails but turning doesn't affect it.
Old 06-21-2017, 02:44 AM
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Originally Posted by ItalianJoe1
Check the axle intermediate shaft bearing. Makes a very wheel bearing-ish sound when it fails but turning doesn't affect it.

How would one best go about checking this?
Besides putting the car up on blocks, and having someone press down on the gas, while I lay under the car?

Also, would you happen to have a part number handy by chance?
Old 06-21-2017, 02:45 AM
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Originally Posted by royce777
could be the bearings inside the transmission
Best way to confirm?

Have a part number by chance?
Old 06-21-2017, 02:48 AM
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Originally Posted by leemanfor
Does it sound like an airplane engine or motorcycle engine?
I guess it could be. Like driving behind a smaller motorcycle cruising down the highway on the highway sort of sound, yeah.
Old 06-21-2017, 11:28 PM
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If the car is not moving and the sound remains when clutch is disengaged (disengaged = pedal depressed/pushed in) then that removes every possible cause from the transmission to the tires. The problem would be the TOB, clutch assembly, or engine.

Last edited by LNFwagonSS; 06-21-2017 at 11:35 PM.
Old 06-21-2017, 11:50 PM
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Not sure I tried that one.
Tried on the road with tires moving disingaging the clutch.
Tried with the clutch engaged, and wheels off the ground.
Like I said already though, the sound is attached to the speed, and I mean speed, not RPM.
Old 06-22-2017, 12:18 PM
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Originally Posted by ItalianJoe1
Check the axle intermediate shaft bearing. Makes a very wheel bearing-ish sound when it fails but turning doesn't affect it.
This sounds likely, but what's the best way to confirm this 100%?
Old 06-24-2017, 01:22 AM
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~ A tumble weed blows through the room~


Welp, I'm pretty sure that's it. Sounds like that's where it's coming from, and seems logical. Guess I'll.see soon. Bearing and seal on the way.
Old 07-07-2017, 10:42 AM
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Turned out to be one of my new Timken wheel bearings.
Lasted just over a year.
Glad I paid the extra money for a quality part......
Old 07-07-2017, 11:19 AM
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I think Timkin is now made in china like all the other parts. Sorry it failed.
Old 07-07-2017, 11:22 AM
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Originally Posted by leemanfor
I think Timkin is now made in china like all the other parts. Sorry it failed.
Timken used to be my bearing of choice when I worked at a shop. But when I switched jobs 2 months ago, everything was already long going down the tubes in quality for almost all the parts you could get. Sometimes even the cheap **** outlasts the "premium" brands now, with no rhyme or reason as to what you're going to get.
Old 07-07-2017, 11:39 AM
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I was going to order Timkin wheel bearings for the LSJ. front

but I found out they were made in china. so i ordered some off ebay. if it lasts 2 years I'll be happy.
Old 07-07-2017, 12:03 PM
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This is great disappoint.
Old 07-08-2017, 07:29 PM
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Yeah, tried contacting Timken twice, via their web contact form, no response at all....
Luckily ZZP are going to warranty it, even though they said it's outside their warranty period. Not sure how long theirs is for this bearing, read on some sites life time warranty, 10 years, 3 years, but yeah, long ng story short, never again...
Old 07-12-2017, 06:00 AM
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Sounds like the differential bearing to me. Hope you find it




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