newage bushings

what are the common bushings to go in the back of a newage she has coilovers so it aint the top mounts i changed drop links and arb bushes and their still a knocking coming out of the rear any ideas????

cheers lads

rear trailing arm bushes give bother and also the diff support bushes

were are the trailing arms are they the ones going from the hub towards the front of the car is it much of a job changing diff support bushes??

ye thats them ,the diff support bushes are a fairly big job not very complex just time consuming better to change them to powerflex or similar it will tighten up the car alot you can buy a full bushing kit for the rear end and it has all the bushes would make great job of it