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Thump thump thump?

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Old Jan 6, 2005 | 09:28 AM
  #1  
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From: Cape Cod MA
Thump thump thump?

Quick question-
I locked the front hubs this morning but did not engage the 4wheel drive drove for approximatly 5-6 miles then suddenly I started to get thiss thump thump thump sound comming from the front end almost sounded like a flat tire (not the case) I pulled over and unlocked the hubs rolled along and still the same sound?does anyone have any ideas or have experieced the same thing?
Any info would greatly be appreciated.

JMACC
 
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Old Jan 6, 2005 | 10:07 AM
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Do you have manual hubs or auto?

Either way, the hub or hubs may not have disengaged properly. It sounds like you have a bearing out on one or both of the axles where it goes into the knuckle.

Did you give the axle a good shake at the u-joints to see if there was slack there?
 
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Old Jan 6, 2005 | 10:38 AM
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From: Cape Cod MA
Hubs are manual w/switch inside,truck is a 2000 350 cc Lariat long bed, I'll give it the shake try this evening when I get home from work.Thanks for the reply.

JMACC
 
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Old Jan 12, 2005 | 03:22 PM
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What did you find out, JMACC?

I was wondering because you said you had manual hubs with the ESOF system.

When did you replace the factory hubs?
 
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Old Jan 12, 2005 | 03:29 PM
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Square tire !!!!!!!!!!! ha! Freddy Flinstone ah its raining here we need to laugh !
Hubs as stated
u-joints in axle shafts
u-joints in front drive shaft to transfer case
Maybe a front wheel bearing also decide to crap out

Rich
 
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Old Jan 13, 2005 | 08:08 AM
  #6  
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Big Orn
I bought the truck with the hubs in place, I also found that I picked up a 1/2 inch lag bolt with the washer dead smack in the center of the tire. Note of caution when this happens put your spare on as soon as possible, I waited untill the next morning tire had gone down a little I aired it up was going down to the local tire shop to have it fixed -halfway there the lag bolt flew out and the tire went down immediatley drove about 100 yards to a side street and completely ruined a brand new BFG all terrain. It was a $220.00 morning. Moral of the story" Never take the easy way out do it right the first time"

JMACC
 
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Old Jan 13, 2005 | 08:44 AM
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I hear ya', JMACC.

So, the THUMP, was the lag bolt all along....imagine that.
 
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Old Jan 13, 2005 | 09:09 AM
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Yes it was- it felt like something was broken in the front axle.
 
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