3 days after buying and I can hear the rear diff howl

I don't really care if you ignore me. But thanks for letting me know. I'll sleep better

 

Fuck. I'd kill to have temps in the 60's.

 

Turn your head upside down. 99 66

 

In my experience, howling sounds that are throttle sensitive instead of speed sensitive are usually caused by the differential. I'm on my second differential and it's louder than the first.

For those of you who like to jump all over Smitty, just because his posts are overwhelmingly negative doesn't mean they're wrong. His howling was diagnosed by a Toyota dealership with a stethoscope hooked to the differential. They were convinced that it was the differential.

If mine wasn't the differential then changing the differential wouldn't have had an impact on the sound one way or another. By it changing, unfortunately for the worse, I'm convinced that they were right to suspect the differential.

 

https://www.tacomaworld.com/threads...-things-i-noticed.436360/page-3#post-13036479

 

Has the sound got worse over time?

 

Just had my lift, wheels and tires installed today and now I can't get it to make the sound. Not sure why that would've changed anything unless it's a driveline angle issue. Can't complain I guess.

 

Wow that is crazy, glad it stopped and sounds like you are good to go, thanks for the update.

 

Maybe you found the fix! We all just need the lift and tires you have!!! If only that would work.

 

Maybe the tires drown out the Howling.

 

Probably the case. Seeing as I complained about it to my dealer last week and got the it's normal and we didn't hear it response the hum of the tires is the only fix that worked for me.

 

Are you still in the same truck that had the diff sound?

 

Yes. I've had the TSB for the rear differential howling done too. It didn't help.

 

Change the fluid to 75 90 and turn up the music.

 

I don't believe it has to do with the viscosity of the fluid as I had the TSB done and its mostly gone by now