Hello, i have a 01 gs430.

rear driver side was making a horrid knocking sound , ended up being a faulty autozone axle i had installed for (maybe) 6 months.

Last time i buy that from autozone...

 

Double check and make sure you have the correct lug nuts... the rotor shouldn't be moving under a properly torqued wheel.

When you took the wheels off, did you run the lug nuts down against the rotor? Did it still move?

 

I don’t remember if the rears have retaining screws in them. Anyone had their rear wheels off lately?

 

There's no way that movement could happen with the wheel torqued down. Maybe the lug-nuts were loose. Torque them down and re-test drive for the noise.

 

Are you SURE the lug nuts are tightening the wheel to the rotor and not bottoming out on the extended studs, leaving the rotor free to rattle around?

 

not positive.....this noise still persists and my mechanic is stumped and thought i was crazy until they actually heard the sound.

it's really only making the noise from driver side rear....moist noticeable when i take my foot off gas and then give it gas again

 

Your description in post 1 may be misleading me but are you saying you removed the wheels, and with the car suspended in the air, you put it in gear and saw the studs hitting or moving within the holes of the brake rotor? It's completely normal/expected that without a wheel torqued down, the rotor can move a slight amount relative to the studs, as the lug holes in the rotor are quite a bit larger than the studs themselves that protrude through the rotor. But as others have stated, you should have NO movement when there's the torque of the lugs pulling the wheel tight. You're sure it's not coming from the differential or a bad bushing somewhere in the rear-end?

 

My guess would be that the brake pads are moving. Are all the clips in place?

 

Hi, did you find the problem in the end?
I have a 2002 Gs300 that has a very similar clicking to yours.. I thought it may be the diff.. but it sounds too hollow or tinny a noise for that.. my mechanic is stumped.. if I hover on the brakes it stops..

 

it was the ****ing rear axle. replaced with trakmotive axles and no noises anymore. Moral of the story, don't buy autozone axles

 

Mine are missing... anyone know where I can order some?

 

So the cv joint had gone bad..I cant find any in the uk..