Celica Forums General Discussion Engine and Performance Vibrations

I need help to know what happens with my celica. The car has a bad vibration but it is not the engine mounts. We reviewed it and found that the vbracion can come from the fuel tank, but I have no idea that it can generate this type of vibration, it is very strong.
My car is a celica 1993 1.6
You can help me?

Your exhaust runs from your engine, under your Celica to the muffler, which sits under your trunk space. Check your hangers. Are they dry, solid, broken, missing?