2003 Super Duty rear end vibration - PowerStrokeNation : Ford Powerstroke Diesel Forum
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post #1 of 27 (permalink) Old 12-26-2010, 12:07 AM Thread Starter
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Question 2003 Super Duty rear end vibration

2003 f250 Super Duty has a bad vibration in the rear end at highway speeds (60 plus). We thought it was the new tires we had put on... but we are on a third set of tires now and still no change. The weird part is that the truck will shake bad for a few minutes and then smooth out for thirty seconds or so. It tends to smooth out around a bend on the highway. We thought maybe it had a bent rim, but if that was the case it wouldn't smooth out at all.?.? Any ideas on whats going on before we take it to the Ford stealership?
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post #2 of 27 (permalink) Old 12-26-2010, 12:24 AM
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Re: 2003 Super Duty rear end vibration

jack it up and check the ujoints and carrier. I bought a truck once from the local car auction that others didnt want because of a bad rear end. I drove it home vibrating and all. Jacked it up and found a bad ujoint. Problem sovled for me.

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post #3 of 27 (permalink) Old 12-26-2010, 02:38 AM Thread Starter
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Re: 2003 Super Duty rear end vibration

Could it be a u-joint even if there's no clanking noise?
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post #4 of 27 (permalink) Old 12-26-2010, 03:46 PM
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Re: 2003 Super Duty rear end vibration

yes all I had was a vibration, no noise. You cant tell if a ujoint is bad useally unless all the load is off the driveshaft so you have to jack it up.

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post #5 of 27 (permalink) Old 12-26-2010, 04:05 PM
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Re: 2003 Super Duty rear end vibration

whle you under there go ahead and check all the joints, do the wheel trick.

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post #6 of 27 (permalink) Old 12-27-2010, 02:24 AM
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Re: 2003 Super Duty rear end vibration

a seized ujoint will do that. you have to drop the shaft to check for a seized joint though. there won't be any play. but seized caps will give you a weird vibration.

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'06 Ford F450 CC DRW Lariate 24" Alcoas & Toyos
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yeah its similar to that one but unfortunately not nearly as long or as cool
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post #7 of 27 (permalink) Old 01-02-2011, 01:33 AM
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Re: 2003 Super Duty rear end vibration

center carrier bearing is probably shot
easy replace and reinstall new unit


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post #8 of 27 (permalink) Old 01-04-2011, 11:44 PM Thread Starter
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Re: 2003 Super Duty rear end vibration

Would either of the above cause a vibration on just the one side?
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post #9 of 27 (permalink) Old 01-05-2011, 12:46 AM
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Re: 2003 Super Duty rear end vibration

no it wouldn't.

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'06 Ford F450 CC DRW Lariate 24" Alcoas & Toyos
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'73 Chevy RS/Z-28

Quote:
Originally Posted by swamp_ratt View Post
yeah its similar to that one but unfortunately not nearly as long or as cool
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post #10 of 27 (permalink) Old 01-05-2011, 11:55 AM
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Re: 2003 Super Duty rear end vibration

I asked a similar question for my truck the other day and this answer makes more sense. Mine vibrates (like a humming) at 60+ mph, but my jitters while taking off. The harder i mash it the harder and more fierce the jitter.

How can you tell if the center ujoint is bad? Mine seems a little loose without the truck being jacked up. Is that normal.

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