4. Engine front, engine front torque motion limiter, trans, and lower engine torque motion limiter.
The engine front and trans mounts are the hydraulic ones that droop over time and give the vibrations. Of course, when they droop the motion limiter ones get stressed and feed vibrations too. The engine and trans mounts usually fix the vibrations and the motion limiter ones get replaced if they have rubber cracking or separation. In many cases only the hydraulic main ones are needed.