I Here a sound from the right rear wheel that sounds like I'm driving through gravel and debris is hitting the under side of the car. Almost sounds like making popcorn lol .I've only been a z owner for two days. Do you think it may be the rear stab link?

 

It helps to mention what year your Z is, and what kind of mileage, in posts like this. From your general description, it could be a worn wheel bearing. Have you jacked it up and checked the stability of the wheel to see if there's any wooble?

 

^^ Good advice… A worn bearing is about the only thing I can think of that would cause that type of noise effect the OP describes. As per your technique instruction, it is very easy to determine if a bearing is worn out.

 

If it sounds like popcorn and it's a wheel bearing it should be very obvious from the tire shake test and you should not drive the car. For it to have gotten that bad you would have had to ignore the wheel bearing growl for a long time. Alternately, it could be one of the 9 bushings on that corner or the subframe bushings or a sway bar link or mount knocking around. first give the wheel a shake, if you can't feel any play get that car up in the air and have a look at all the moving parts.

 

Mine was doing this until the other day. The issue in my case was the rear shock mount gasket. When worn out it looks like a piece of undercooked chew bacon. Every time I hit gravel/pot hole/ .etc it would rattle. So I bought a new rubber mount kit, and also replaced the shocks (you don't have to), and made my own gasket. Now, no more rattle. Here are a link to the issue;
https://my350z.com/forum/maintenance...noise-fix.html

Hope that helps.

 

My vote is going to wheel bearing. Jack it up and check for play.

 

Hey OP- don't forget to post up what happened with your Z!