Rear diff noise - Dodge Cummins Diesel Forum
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post #1 of 10 (permalink) Old 01-03-2020, 09:47 PM Thread Starter
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Rear diff noise

I have a 2016 RAM 2500 Meg-Cab i just got it two months ago, the rear end has a growl, at least thatís what it sounds like. Is there any good but in expensive rebuild kits or a solution to this?

Maybe just fluid change? I do not know


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post #2 of 10 (permalink) Old 01-03-2020, 09:49 PM
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Try fluid change. Take a close look at the oil coming out. Look for any sparkles


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post #3 of 10 (permalink) Old 01-03-2020, 09:53 PM Thread Starter
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Try fluid change. Take a close look at the oil coming out. Look for any sparkles


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Yeah sorry i should have added, i pulled the fill plug and had some flakes stuck to it. I cleaned it off, topped it off, and drove it to Arizona and back havnít pulled the plug again yet. I will do that tomorrow and check it again.

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post #4 of 10 (permalink) Old 01-03-2020, 09:55 PM
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I had a very similar noise and the carrier bearing was toast. 100k miles. Diff needed to be rebuilt.


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post #5 of 10 (permalink) Old 01-03-2020, 10:01 PM Thread Starter
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I had a very similar noise and the carrier bearing was toast. 100k miles. Diff needed to be rebuilt.


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Thatís what i was afraid of. It has 120k on it now. Might just have to get me a rebuild kit

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post #6 of 10 (permalink) Old 01-04-2020, 03:11 AM
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Itís not that simple.

You need to have a good shop look at it if youíre not capable of setting up gears.
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post #7 of 10 (permalink) Old 01-04-2020, 01:19 PM
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Working on differentials is not a DIY shade tree job. It takes precision and tools which are designed to make sure you get specs right, not close enough.

Pull the cover. Check the fluid for metal. Differential fluid will ALWAYS have metal in it as there is no filter. You just want to make sure there isnt tons of metal and or any chunks or large debris in there. Check the bottom of the differential housing for big pieces. The level of material stuck to the magnet is sometimes an indication too since it will ALWAYS have metal dust on it but if there's a ton stuck on there then thats an indication of the fluid never been changed or there's some serious wear going on. Obviously this is dependent on service intervals and what the truck is used for.

If the fluid looks dark but not terribly sparkly then a swap out with some quality synthetic stuff might offer some relief.

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post #8 of 10 (permalink) Old 01-05-2020, 10:02 PM
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Gears are NOT hard. They ARE time consuming and require special tools. I bought almost of them for around 200 bucks. Would have been better off buying a better bearing puller... But it is a shade tree job.... Its not terribly different than setting valve lash, as in take your time, make adjustments and remeasure until its right... Not close enough... RIGHT... LOTS of labor... LOTS of patience... LOTS of cut fingers... But most anyone can do them!
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post #9 of 10 (permalink) Old 01-05-2020, 10:13 PM
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Quote:
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Gears are NOT hard. They ARE time consuming and require special tools. I bought almost of them for around 200 bucks. Would have been better off buying a better bearing puller... But it is a shade tree job.... Its not terribly different than setting valve lash, as in take your time, make adjustments and remeasure until its right... Not close enough... RIGHT... LOTS of labor... LOTS of patience... LOTS of cut fingers... But most anyone can do them!
Rebuilding an engine is not hard either. It's time consuming and requires special tools. But there are just some things not all people can do even if they have the tooling and time...
Thats not an insult to anyone but just reality.

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post #10 of 10 (permalink) Old 01-05-2020, 10:16 PM
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Rebuilding an engine is not hard either. It's time consuming and requires special tools. But there are just some things not all people can do even if they have the tooling and time...
Thats not an insult to anyone but just reality.
Agreed, but I do think that with enough research, it is doable by most. Its not custom tuning and its not a trans rebuild... Its also not an air filter change... It takes time and basic knowledge on top of some research. I just read a lot of posts all over the place in my research that scared me before I did the job. Its not THAT crazy... just takes time....

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