u/Expect_The_Opposite

Hey everyone,
Trying to track down this random squealing noise on my 3rd Gen. You can hear the high pitched squeak/squeal.

truck: 2000 limited w rear locking diff; 160k ish miles

Details:

Where: Sounds like it's coming from under the truck, maybe the front right/passenger side.

When: Mostly at highway speeds between 50–80 mph, but occasionally at lower speeds when accelerating up to highway speed.

Triggers: It seems totally random. It does not change or trigger when hitting bumps, turning the wheel, or braking.

Anyone heard something like this before on their 4runner or any recommendations ??