Why no extensive break in required on OEM gears?

And run some ridiculous oil combination like rotella 15w40 mixed with a tub of wheel bearing grease and a bottle gummout injector cleaner because his pappy ran it when he ran dirt track in his daily driver.

 

nice!! I was thinking heat and possible tighter tolerances, but I honestly was just guessing

 

I think we can all agree Toyota, or their vendor, does a good job with the OEM gears. Considering all the fellas running oversized tires on stock gearing, etc, you hardly ever hear about failures or problems.

Diff whine seems to be a complaint here from time to time, but that is possibly just someone’s OCD kicking in.

 

While diff whine WRT the 3rd gen rear axles hasn't been shown to be anything but an annoyance, I'd hardly characterize complaints about it as due to OCD. My '16 was LOUD.
My 19, well you can hardly hear it.
In other words, it depends on the truck and of course the owner.

 

Too late. I already signed you up for therapy.

 

Definitely not OCD for those who have a noisy howl. Maybe yours has it less due to tires/mods, but in stock form, it's pretty unacceptable.

My wife, who never complains about anything car related unless a wheel is falling off commented on the howl in my truck on our road trip last week. I can hear mine as clear as day above radio volume 35.

 

I only have small lift and 31” tires. No diff howl. Guess I’m lucky with that.

 

Lol, better treat me for the right issues.

Throttle lag and unpredictability are tops. My left eye is twitching right now

 

You should see how long a set of Cryogenic treated gears last behind a transbrake launch and on slicks