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front driveshaft turning in 2wd

  #1  
Old 05-16-2018, 08:06 AM
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front driveshaft turning in 2wd

I'm chasing a squeak that is not always there. dropped it off with mechanic and they told me the u joint on the front shaft looks rusty and that the front shaft is spinning even though it is 2wd. Am I correct that is should only spinn in 4wd and not in 2wd.

Thanks Billy
 
  #2  
Old 05-16-2018, 09:10 AM
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Correct,

if the drive shaft is turning when the transfer case is in 2wd then you have a locked or sticking hub.

typically results in the axle seal wearing out also so be sure to check that.
 
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Old 05-16-2018, 11:37 AM
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Originally Posted by pirate4x4_camo View Post
Correct,

if the drive shaft is turning when the transfer case is in 2wd then you have a locked or sticking hub.

typically results in the axle seal wearing out also so be sure to check that.
OK thanks I put new hubs in last year so I hope its not that.
 
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Old 05-16-2018, 12:58 PM
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I had the same issue. Turned out to be too much grease in my locking hub combined with the cold wouldn't let it unlock. They're easy to pull out and if you do, you should be able to spin the front shaft freely by hand. That'll at least tell you which side it is if you pull one at a time and check them.

Unfortunately, I also have the same intermittent squeak in the front shaft. Best I can tell it's at the insertion point into the transfer case. It's been added to the loooong list.
 
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Old 05-16-2018, 02:01 PM
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Good time to recall Brentís tranny-soaked rag application (note I didnít say fix ).
 
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Old 05-16-2018, 03:20 PM
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Well a few things going on. Driver side hub was not dissenting. Vacuum was not working correctly only one of the two was coming out of the switch was working. New warn hubs all taken care of. Squeek is only when hubs are locked in. The best they can figure is that it is the vacuum seal. I was there spinning the bearing while mechanic was probing with a stethoscope. We decided to leave it as is since it only makes noise when hubs are engaged and something I can do on my own. No more auto hubs oh well tired of messing with them.
 
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Old 05-16-2018, 06:44 PM
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Originally Posted by ithaca1230 View Post
Well a few things going on. Driver side hub was not dissenting. Vacuum was not working correctly only one of the two was coming out of the switch was working. New warn hubs all taken care of. Squeek is only when hubs are locked in. The best they can figure is that it is the vacuum seal. I was there spinning the bearing while mechanic was probing with a stethoscope. We decided to leave it as is since it only makes noise when hubs are engaged and something I can do on my own. No more auto hubs oh well tired of messing with them.
I did the same thing recently. Screw that ESOF system!
 
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Old 05-16-2018, 07:49 PM
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Now we just need somebody to make a manual shift mechanism to replace the electric motor setup.
 
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Old 05-18-2018, 07:51 AM
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So now that we got the manual hubs in and squeaking only occurs when hubs are locked or 4wd is engaged. I guess I will have to order a new vacuum seal and replace it. They are aprox 1.5 year old maybe 10,000 miles on them. I replaced both and the bearings.
 
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Old 05-18-2018, 07:56 AM
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Originally Posted by ithaca1230 View Post
So now that we got the manual hubs in and squeaking only occurs when hubs are locked or 4wd is engaged. I guess I will have to order a new vacuum seal and replace it. They are aprox 1.5 year old maybe 10,000 miles on them. I replaced both and the bearings.
I have a new set of Motorcraft hub rebuild kits for sale in the classifieds. I went to manual Warn hubs so no need for them. Brand new not opened.
 
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Old 05-18-2018, 10:34 AM
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Originally Posted by wpnaes View Post
Good time to recall Brentís tranny-soaked rag application (note I didnít say fix ).
C'mon, don't knock it till you've tried it!

I mean, it is linked in the tech folder after all, so that has to mean something, right?

Stewart
 
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Old 05-18-2018, 12:17 PM
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Originally Posted by Stewart_H View Post
C'mon, don't knock it till you've tried it!

I mean, it is linked in the tech folder after all, so that has to mean something, right?

Stewart
I will look at that again.

Thanks
 
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Old 05-18-2018, 02:22 PM
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Good one Stewart!
 
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