rear end knocking

[RGM1800]

heard some knocking noise when i hit humps or bumpy roads. what could be the possible problems?

here are some details of my car

cusco coilovers
stock panhard rod
oem rear bush

 

[starbuck]

Have you got an aftermarket exhuast? Are the knocking noises more noticable when you have passengers? Just a suggestion that it could be your exhaust

 

[RGM1800]

Have you got an aftermarket exhuast? Are the knocking noises more noticable when you have passengers? Just a suggestion that it could be your exhaust

yes sir more noticeable when i have loads at the rear. i have installed a fgk backbox

 

[kellygt]

What kinda condition are your exhaust hanger rubbers in if there worn the exhaust would be knocking like mad

 

[bullet]

id start by looking at the exhaust, mine knocked like mad when the rubber was worn out