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  #1  
Old 01-07-2011, 07:28 AM
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Exclamation 4X4 help thumping sound

Ok so this is the first time since last year I used my 4h, I just installed new warn manual hubs in replace of the auto hubs. Now I have a loud thumping sound coming from the underside. 4H engages and works, light comes on, also their is a loud squeal, the faster I go the louder both get. Please help any ideas
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Old 01-07-2011, 08:07 AM
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update, the faster I go the louder and faster the thumping gets, any help would be great
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Old 01-07-2011, 08:14 AM
shhhhh, can you hear it?

 

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have you checked the axle and joints?
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Old 01-07-2011, 08:22 AM
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whats the best way to check them
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Old 01-07-2011, 09:20 AM
shhhhh, can you hear it?

 

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grab and shake near the joints,shouldnt be much movement.also check your drive shaft the same way.hopefully some other guys will chime in with some ideas
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Old 01-08-2011, 10:30 AM
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Ok so I found a problem, not sure if this is the problem, the front U-joint on the front drive shaft is shot, lots of play. Any idea how to replace them and whats involved. Its the double joint.
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Old 01-08-2011, 10:47 AM
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correction the U-joint with the play is the rear double one that connects the transfer case to the front drive shaft
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  #8  
Old 01-08-2011, 07:30 PM
shhhhh, can you hear it?

 

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never done it but if i member correctly it should have a snap ring on one or both sides of the pins.take those off and then push out the pins with either a pin punch and hammer or a screw press of some sorts.
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Old 01-09-2011, 06:34 AM
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great thanks, im gonna get the parts from ford and give it a go
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  #10  
Old 01-09-2011, 08:27 AM
shhhhh, can you hear it?

 

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might want to try to find better ones.usually when something breaks on my truck i try to buy an upgraded part
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