Grumble/Vibration in front end- where to look - Ford Powerstroke Diesel Forum

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post #1 of 10 Old 11-21-2008, 05:45 PM Thread Starter
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Grumble/Vibration in front end- where to look

I have a very low frequency vibration in the front end that goes away when I turn the wheel to the right more than about 15 degrees.

It is most noticeable going 40-55 MPH. The vibration does not stop when I turn left, only when I turn right. I noticed that it goes away while I was on some exit ramps/flyovers.

It is consistent, always present, not dependent on RPM of engine. Somewhere in the front axle....Thoughts?


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post #2 of 10 Old 11-21-2008, 07:36 PM Thread Starter
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plus some characters


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post #3 of 10 Old 11-21-2008, 07:59 PM
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unit bearings in the hub assembly going bad? jack wheel off the ground and pull top and bottom in and out to see. if you have play, they are bad.

january 2003 6.0 F-350 Lariat 4x4 cc with 08 long bed. recon cab and mirror lenses, torqueshift(reman on 9-03-09) with three disc billet convertor(500 rpm lowered stall speed),mag-hytec deep tranny pan,, 8" fabtech lift w/ 37" iroc super swampers on helos,pro comp ladder bars, custom sct x3 with tunes by eric @ innovative diesel, boost and pyro,edge insight, afe, 4" straight piped, ARP headstuds, banks intercooler & high ram intake. engine mods & maintenance by first coast diesel performance.

Last edited by nsrchofpwr; 11-21-2008 at 08:00 PM. Reason: more inf
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post #4 of 10 Old 11-21-2008, 08:00 PM
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ditto .

Bellowed Up Pipes
GTP38R
T500 HPOP
HPX Line
RiffRaff FRX Line
JW Valve Body
4" Lift w/33's
6637 DIY intake
4" exhaust
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post #5 of 10 Old 11-21-2008, 08:42 PM Thread Starter
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sounds like a PITA and $ fix..

I'll try the pulling trick in the AM. (isnt that the same test for ball joints?)

assuming thats the problem, how long can I delay the fix?


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post #6 of 10 Old 11-21-2008, 08:49 PM
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don't wait if that is the problem. check local driveline shops. they do the work at a reasonable price.

january 2003 6.0 F-350 Lariat 4x4 cc with 08 long bed. recon cab and mirror lenses, torqueshift(reman on 9-03-09) with three disc billet convertor(500 rpm lowered stall speed),mag-hytec deep tranny pan,, 8" fabtech lift w/ 37" iroc super swampers on helos,pro comp ladder bars, custom sct x3 with tunes by eric @ innovative diesel, boost and pyro,edge insight, afe, 4" straight piped, ARP headstuds, banks intercooler & high ram intake. engine mods & maintenance by first coast diesel performance.
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post #7 of 10 Old 11-21-2008, 08:50 PM
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also it is not too bad to do it yourself.

january 2003 6.0 F-350 Lariat 4x4 cc with 08 long bed. recon cab and mirror lenses, torqueshift(reman on 9-03-09) with three disc billet convertor(500 rpm lowered stall speed),mag-hytec deep tranny pan,, 8" fabtech lift w/ 37" iroc super swampers on helos,pro comp ladder bars, custom sct x3 with tunes by eric @ innovative diesel, boost and pyro,edge insight, afe, 4" straight piped, ARP headstuds, banks intercooler & high ram intake. engine mods & maintenance by first coast diesel performance.

Last edited by nsrchofpwr; 11-21-2008 at 09:18 PM. Reason: spelling
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post #8 of 10 Old 11-21-2008, 09:15 PM Thread Starter
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i'm ok with DIY, just need to know what to be on the lookout for/pictures. I've read the threads that have been under unit bearing, but not a single photo....aside from a dust seal. darn.


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post #9 of 10 Old 11-22-2008, 01:53 PM Thread Starter
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Ok its all apart...should the 'inside' of the hub near the axle be greased before reassembly?

Also, what to use on the yellow o-ring? What kind of grease. I dont want a bad interaction.

Super easy to take apart and putting back together will be easy too. No explaination needed really. Just need some help with the grease situation.


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post #10 of 10 Old 11-22-2008, 02:25 PM Thread Starter
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I know, the board is kind of dead at the moment.

TTT so I can buy the right grease tonight, I have 30 more minutes..


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