Rear wheel during a turn chatter

[WatchObs]

2015 odo: 100k kms (60K miles) has the sound in the video but only when turning, so when differential wheel rates. The wheel can be seen to jitter as it rolls, although the video does not quite show this.

Noise comes in at 26 sec when on grass, but not on concrete. It is possible that ground with lower friction will allow it to show (gravel, grass..).

RAM1500RearWheelJitter

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Clues? Thanks in advance.

 

[nlambert182]

Have you tried changing the diff fluid? I had a little chatter in mine when I bought it. Changed out the fluid and it went away.

 

[WatchObs]

Thanks, indeed Googling previously that was one of the suggestions, but had not found a video that had the chatter, so thought posting it would nail a solution. At the moment it's the going hypothesis.

 

[Bigskyroadglide]

I'd start with, diff fluid as indicated by @nlambert182 with the added friction modifier, if your truck calls for it. I'd also check for any brake issues especially with the internal parking brake shoes. I'd also look for any road debris that might have gotten caught on any mechanical assembly.

I think it's the first one but you should be sure. The 2nd and third recommendations don't cost anything but time

My .02

 

[WatchObs]

Diff lube was changed, rattling gone!
Thanks for the help.