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Highway vibration question

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Old Feb 16, 2013 | 01:27 PM
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Highway vibration question

I have always had a lingering thought, maybe it's not necessarily a problem, but when I'm going faster than 70 on the highway and I let off the gas it has a big vibration when it's going that fast. I thought transmission maybe but I've never really put much thought into it, but ill be drivin a lot of highway miles soon and I wanted some closure! Any help would be appreciated please!

Luke
 
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Old Feb 16, 2013 | 01:40 PM
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check the universals in the rear driveshaft. i bet the rear joint at the pinion is bad.
 
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Old Feb 16, 2013 | 01:44 PM
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Ill give it check, but if they were bad, wouldn't they constantly do that?
 
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Old Feb 16, 2013 | 01:49 PM
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nope they will only vibrate all the time when they are ready to fall apart.
if you are feeling it now at 70+ mph, you have about 500-600 miles before the u-joint falls apart.

look closely for rust streaking at the caps.
 
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Old Feb 16, 2013 | 02:06 PM
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Will I be able to feel any play in them yet?
 
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Old Feb 16, 2013 | 06:05 PM
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maybe. i have seen them loose with no rust streaking, and i have also seen then rock solid but have rust streaks. the rusty tight ones are the ones that worry me, because they have no grease in them, and fall apart real fast.
 
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Old Feb 16, 2013 | 07:02 PM
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Ill give er a look. Is there any other possible diagnosis besides the u joints?
 
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Old Feb 16, 2013 | 07:25 PM
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well it could also be something in the rear axle, but i really doubt it that.
 
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Old Feb 16, 2013 | 11:26 PM
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Also check the carrier bearing.
 
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Old Feb 17, 2013 | 09:08 AM
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he has a single cab long bed Bill. no carrier bearing.
 
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Old Feb 17, 2013 | 10:15 AM
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Ah, I missed that Tom.
 
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Old Feb 17, 2013 | 01:47 PM
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blah blah blah


you just wanted to prove you were smarter than the old fart!!
 
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Old Feb 17, 2013 | 03:08 PM
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Originally Posted by tjc transport
blah blah blah


you just wanted to prove you were smarter than the old fart!!
LOL!! Back fired on me didn't it! I'll get ya next time! LOL!!
 
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