groaning noise from the rear

rbillau

Hi all. I recently bought a 2008 Compass with the 2.4 engine. It had been sitting in a garage for about 6 months. Recently, I have noticed a groaning sound from the rear end. I only hear it at starts and stops when applying or releasing the break although I also hear it when getting out of the car or sometimes I can shake it and hear it. I already had to replace the front axle so I;m hoping someone has an idea I can fix. I already tried wd40 on all the joints. Thanks!