What did you do with your Tundra or Sequoia this weekend?

[LX Cruiser]

I'm thinking he may also have spent a side part of nearly an entire career designing the needle bearings in the front diffs - how on earth did that design last for something like 40 years and multiple generations of TSBs and replacements when a cheaper bushing would work better?

That's the only thing I've "fixed" on my Tundra. And I don't think it was really an issue at all. Just a noise. It seems to me it would have happily made that noise for the life of the truck. My truck made that noise from the second I drove it off the lot (I didn't think anything of it on the test drive). For 60k miles.

I removed the needle bearing, and there was zero wear on it or on the CV axle or the diff housing. It just had the tiniest bit of slop that allowed the CV axle to move a couple millimeters in it, which would cause the groaning noise at certain speeds in 2Hi only.

I think that's why they never fixed it. Just speculation.

 

[Jetboy]

That's the only thing I've "fixed" on my Tundra. And I don't think it was really an issue at all. Just a noise. It seems to me it would have happily made that noise for the life of the truck. My truck made that noise from the second I drove it off the lot (I didn't think anything of it on the test drive). For 60k miles.

I removed the needle bearing, and there was zero wear on it or on the CV axle or the diff housing. It just had the tiniest bit of slop that allowed the CV axle to move a couple millimeters in it, which would cause the groaning noise at certain speeds in 2Hi only.

I think that's why they never fixed it. Just speculation.

When it went on my '15 4R it was pretty noisy. And the wiper seal wouldn't hold. I think the shaft wobbles some even when new. It's not a very precision fit. But when mine failed the shaft wobble was probably too much without the bearing locating the shaft in the housing causing the seal to leak. Toyota replaced it for free, so I ended up with another needle bearing instead of a bushing and that one lasted until I sold it. I put the bushing i had in the glove box for the new owner.

Toyota didn't balk at all about larger tires or a lift when doing the warranty fix. That was nice. They said anything under 3 inches wasn't a problem.

 

[Jetboy]

Maybe the Sequoia has an interior air quality sensor and it actually let the hatch window to go down (the kid farted, remember? )

In any case, departing late and tired is always a mistake. Would it happen the next morning I would be able to diagnose it properly. I think.

I remember to test this out on my '16 Tundra. With the window lock switch turned on (locked) the driver's window goes up and down as normal and the rear glass goes up and down as normal. The both rear and passenger doors will not go up or down from either driver's switch panel or the door switches. In my RX350, same switch turned on - all windows operate up and down from driver's seat, but locks out each individual door.