"thumping" in 4 wheel drive. - Dodge Cummins Diesel Forum
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post #1 of 8 (permalink) Old 12-27-2015, 08:06 PM Thread Starter
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"thumping" in 4 wheel drive.

We got some snow today. I had to get out to go get my big trucks ready for tomorrow and put it in 4x4. There is a very noticeable thumping sound. It appears to be coming from the drivers side front. I would assume this is related to the other sounds I am having in the same area. Here's a thread I posted looking for some advice... https://www.cumminsforum.com/forum/20...g-bad-hub.html

I took the entire brake assembly off the other day and can find no clues as to what is going on. Im starting to think is axle related??? Anyone have any ideas.


2011- Totaled. 2013 Laramie Megacab. 3.42's. +18 OS 20x9 MB Wheels with 35" Cooper STT Pro's. 24" Rough Country Light Bar between the hooks. Viair on board air system w/ Air Horns.
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post #2 of 8 (permalink) Old 12-27-2015, 08:11 PM
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axle ujoint? front driveline ujoints?

04 QCLB. 48re, 4x4,08 mega g56, 4x4.


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post #3 of 8 (permalink) Old 12-27-2015, 08:12 PM
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Sounds like hub or U joint have you greased your hubs though your ABS hole ? try that and see if your U joint is busted

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post #4 of 8 (permalink) Old 12-27-2015, 08:25 PM Thread Starter
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I greased the front drive shaft not to long ago. And no, I have to greased anything else. I was not aware that you could grease anything else? Is there a right up on this?

2011- Totaled. 2013 Laramie Megacab. 3.42's. +18 OS 20x9 MB Wheels with 35" Cooper STT Pro's. 24" Rough Country Light Bar between the hooks. Viair on board air system w/ Air Horns.
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post #5 of 8 (permalink) Old 12-28-2015, 12:06 AM
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https://www.cumminsforum.com/forum/3r...-bearings.html

Its been debated weather it works, but one of the members on here pressed an old unit bearing apart and proved that it works.

06 Auto single cab long bed stockish
08 G56A Maga cab- Deleted/Anarchy reverse leveled
12 68RFE Mega cab- Deleted/smarty jr.
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post #6 of 8 (permalink) Old 12-30-2015, 07:15 PM
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I have the same problem but when I engage 4x4 it stops, disengage and it starts making noise again,, just replaced the hub and axle u joint, its on drivers side as well.
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post #7 of 8 (permalink) Old 12-30-2015, 07:51 PM Thread Starter
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I would check the u joints on the front drive shaft. Thats where my 4x4 sound was coming from. Had some slight play in one of the u joints.

2011- Totaled. 2013 Laramie Megacab. 3.42's. +18 OS 20x9 MB Wheels with 35" Cooper STT Pro's. 24" Rough Country Light Bar between the hooks. Viair on board air system w/ Air Horns.
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post #8 of 8 (permalink) Old 12-30-2015, 07:55 PM
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ill check that tomorrow, im just confused on why it stops when I put 4x4 in, and as soon as I take it out it starts
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