I need assistance diagnosing chassis noise

I got the bright idea to try to use my cell phone to try to find the chassis noise my truck has. I planned on videoing every corner. Left front, the 1st video, worked perfectly. That was followed by 7 or so attempts but the noise never resurfaced. Maybe it fixed itself. Jk.
https://youtu.be/YiMAxFdykc0
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21 second mark is the noise.

 

How long since the last slip yoke and driveline universal joint lubrication?

 

I have no idea, possibly never. The u-joints were only checked for play. I never looked at the slip yoke. I think I will tomorrow. Any specific grease that you recomend for that application? Thank you.

 

Timmy the Toolman has a video about greasing the skip yoke. He recommends a grease in the video.

https://youtu.be/Jyltxe2nPEg

 

I'm by no means an expert on 4WD's, but since the truck has automatic front hubs how would putting it in 4WD help with the diagnosis? What I mean is that if the noise gets worse in 4WD it won't distinguish which part is making the noise. Or will it? Idk.
I'm going to put it in 4WD and see what happens anyway.

 

Oh wow, good thing I wrote I'm not an expert because I was totally wrong. Lol. I thought the CV's were relatively motionless (when in 2WD) unless the auto hubs are put into lock by being powered by the CV's (when in 4WD).

 

If you have manual hubs then they won't spin when unlocked and in 2wd, but yeah with ADD the CVs are always spinning.

 

What does ADD stand for? I'm assuming its auto hubs of some sort.
I don't plan on ever getting rid of this truck. I gotta get manual hubs if my auto hubs are turning my CV's while in 2WD. That's absurd, IMO. Function over form as they say.

 

yup, it's automatic disconnecting differential = ADD. That's usually one of the reasons people do the ADD to manual hub swap, so the CVs aren't constantly spinning. Less overall wear and tear over time I suppose. Also manual hubs are all mechanical and you don't have to worry about the electrical going bad on the ADD system

 

Electrical? Smh wtf lol
Is the electrical in the diff or in the hubs?

 

I had all of the major parts at one time to do a SAS. Jeep Grand Cherokee (I think, it's THEE one) front axle, two transfer cases, a pair of leaf springs - I don't recall right now, and a used dual transfer case adaptor. I got a smokin deal on eBay on the axle. Perfect condition. The listing had a buy it now option which I immediately used after confirming it was a real listing by calling the seller. The honest seller couldn't spell worth a damn and didn't research what he was selling. Nice guy though...

 

The ADD system gets activated via the push button system on the 4x4 transfer case lever so it relies on an electrical connection. I don't know a lot about it really other than having manual hubs eliminates the need to rely on that stuff. Just lock the hubs and shift the transfer case into 4wd

 

... if he had a J shift case.

Do the SAC and never look back.

 

My truck doesn't have a push button switch on the t case lever, unless it's a hidden switch activated by the movement of the lever. ???

 

Oh, that makes more sense to me. I'm assuming it's activated by the mechanical movement of the lever.?

Either way, I don't like it. Lol. I'm going to look into getting manual hubs. I know of a salvage yard down here, plus they have the hotline system. Shouldn't be a problem.

 

I took a screenshot of your comment to remind me to research what you're writing about, because I don't have a clue. Lol

 

Those are all valid points, but for a truck that's basically a street queen I'd rather be able to unlock the hubs and not have the CV's and diff turning all of the time for no reason other than the convenience of a auto hub in 4WD situations that the truck will rarely be in.

 

Thanks, I feel slightly better and slightly less stupid. Jk lol

 

I guess I just got another reason to replace those CV's instead of tearing them apart to see if they're damaged. I've seen manual hubs on Tacomas before, Asiasin was the brand or something similar sounding... I'm guessing they were an option, idk.

 

Yah you have the J shift tcase lever...instead of pushing a button to go into 4hi like I do, you manually shift yours into 4hi. It's like a middle ground between manual hubs and push-button 4wd lol.