RRT

Hi there. I have had my Z for 2 weeks now and already I got some noise on it. How frustrating... The noise only appears where the goes in an un-even path. IE. coming out or in the lower parkings of a building.... where at some point you got the rear tires at different levels.... then the noise comes in and out.

The noise comes from the back off-course as it directly has to do with the wheels being at the same level or not.

Any suggestions.....