Knocking on the rear from warm not cold

[ratbag]

Since i had the rear shocks replaces 3 months ago, i have a knocking noise coming from the rear of the car, but it dosent happen untill the car warms up at slow speeds, it sounds like top mounts to me but iv been told that the rears shouldnt need to be replaced, the exhust had been checked and the heat shield too, its been down the garage and they cant find the problem? is there something i can sugest to the garage to check?
cheers,(its realy driving me scatty)

 

[alperin]

you sure its not your wheel bearing?

 

[ratbag]

had the wheel bearings checks two months ago? they said they were fine.