Help with Chirping sound

[dominopizza]

If you listen carefully, in the background, my truck is making chirping sound. Sometimes it makes that noise, sometimes it doesn't. It seems to getting worse when it's cold outside and this sound only come up when the truck is going over 30mph and gets worse when i'm going faster. This chirping noise started 2 years ago. Since then I replaced,
-upper, lower ball joints
-inner/ outer tie rods
-sway bar links
-I replaced timing belt, water pump, roller tensioner bearing, idler bearing, (I thought one of the bearing was making that noise but it wasn't) just last week
-greased all 8 driveshaft zerk points

November 17, 2020 - YouTube

I'm out of an option to try. anybody have any clue to what the problem is?

 

[Malcolm99]

Sounds like a repetitive driveline related rotating sound, maybe put the rear axle on jack stands and run it when this noise appears and crawl under it. Maybe pull the flywheel inspection cover and take a look at the flex plate if the driveshafts check out good at the same time. Not sure if you're Auto, manual or v6

 

[dominopizza]

Sounds like a repetitive driveline related rotating sound, maybe put the rear axle on jack stands and run it when this noise appears and crawl under it. Maybe pull the flywheel inspection cover and take a look at the flex plate if the driveshafts check out good at the same time. Not sure if you're Auto, manual or v6

Mine is 2000 limited with v6 auto

 

[afg10000]

Might be the needle bearing in the front diff -

 

[dominopizza]

Might be the needle bearing in the front diff -

That's a really involved job..... to replace need bearing in the front diff. i'm hoping that it's not that.

 

[Devbot]

That's a really involved job..... to replace need bearing in the front diff. i'm hoping that it's not that.

Not horrible. Timmy the Toolman ha a video on it. Would take an afternoon at most.
Pop the dust cap off the hub, unbolt/pry off the CV, use a little tool to get out the needle bearing (shown in the video) and tap the new clamshell bushing inside.
Though that's not what the sound is like at all, and I think your problem could be in the driveshaft. I currently am affected by the drivers side slop in the CV and can attest it is a roaring and strong, constant vibration at 50mph or above. Besides, driveshafts are much easier to inspect.
If the driveshaft is bad, say if a U-joint is starting to go out, it's highly recommended by all you replace the whole shaft with a new unit, preferably from a professional driveline shop. They cost about the same but OEM cannot have the U-joints in the double cardan serviced. Trust me, I tried without knowing and it was one of the worst saturdays of my life, and didn't even fix the problem in the end.

 

[Gongshow]

It sounds like the exact same thing that my Tacoma was doing when the U-Joints were going out. Once I replaced them, everything was super smooth.