Quote:
Originally Posted by djeepin
The Car Care Nut mentioned somewhere, that on some rear axles on T4R does humming noise appeared at certain speeds. and he said it is a lot hustle and money to fix, and just to live with it. if it's failing bearing - that's another story.
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My 2019 4runner that I bought new has a whining rear differential since day one. I took it in and complained, and they replaced the differential under warranty. The new one whines just like the old one, but I’ve since put on a Gobi rack and the wind noise from it kinda drowns out the whining differential.