i've got a very loud clunking noise coming from the rear passenger side on my 05 ss/sc when i hit a bump. i've check the wheel bearings its good, i've check the rear brake caliber its all tight. any suggestions on what else could it be. Thanks

 

if its the same one as mine im pretty sure its the rear subframe bushings

 

is there a way to check if the rear subframe bushings are bad and how bad are they to replace. Thanks