Mitsubishi Colt rear axle bushing

Mitsubishi Colt rear beam bushing I have a suspicion that the bushings in the rear beam is faulty, but I don't know how to define it.. maybe you know? In the official service station Mitsubishi told me that Mitsubishi does not produce silent block for this, this part is missing in the directory, and I need to replace the rear beam. It's incredible It's impossible for me(. I bought a cheap substitute But it looks very strange. The outer side of the metal. How to extrude it into a beam? I won't be able to do the job yourself in the garage. You need to go to auto repair shop. But this is probably a very expensive price. And do I need to do it now? I don't know.