semar

lately I noticed a whine like with an electric motor coming from the rear.
First I suspected the tires but the sound of the tires changed with the road surface while the whining sound remained steady with the speed. It drops off (like an electric motor) when speed is reduced and increases with faster driving. It starts at about 40 mph. At 60 or 70 mph it gets really annoying
Any ideas?
01 118k miles

RRocket

I'd say wheel bearing.

rkw77080

+1, sounds like a bad wheel bearing. I had the same problem and replaced mine a few years ago. Here's the write-up I posted
https://www.clublexus.com/forums/ls-...del-ls430.html

Johnhav430

That is a terrific write-up. I don't even own a 32mm socket, from memory, I haven't got anything larger than 23mm.....nice pics of all the rear hardware...thanks.

semar

Both rear wheelbearing/hubs need to be replaced
Ordered OEM part Koyo from Autohaus AZ, saved over 200 compared to the dealer for parts alone