Hi guys,
I have a 2004 G35 coupe for 3 months now and start hearing some knocking noise from the rear axle when the car starts rolling and run over some bumps. I thought it was from the stuff in the trunk and the noise is still there even I took all the stuff out.
Is it the rear axle or the differential? \

Also, whenever I am driving on some bad or bumpy road, there's noise from the driver side, somewhere between the front and the rear wheel. It sounds like a metal plate rattle and vibrating. Is something loosing or what?

Thanks!

 

Is it like a tink? These are usually bad bushing issues or an extra washer put on from installation.