05 G35 Coupe 17"Wheels Standard Suspension.

I've noticed it more at slower speeds then higher that at almost 80k miles whenever I go over a slight bump or crack in the road where the body has to compensate by dropping, there is a slight squeak or something similar in the rear left tire area. I still have the factory suspension that came with the vehicle in 2005. Tires and Brakes have been changed of course. I'm just wondering if it's bushings or maybe more around the area of shocks?

Anybody have any ideas?

 

The more I listen and focus on ride quality the more I think it's the shocks in the rear. I'm thinking that at 80k miles it's about time. I can definitely tell the travel of the suspension when I go over bumps it's more pronounced and rougher then it was 10-20k miles ago.

If I'm replacing the rear shocks what else should I look at replacing while I'm at it.