Shake the vechicle
yes, 65;
yes
Is the car running ok? If yes and its only the vibration that's an issue most likely cause is motor mount(s)
Cylinder miss, broken motor mount, or vacuum leak.
Engine miss or rough idle, or broken motor mount
If other things vibrate as well as the steering wheel you might have a damaged motor/transmission mount.
check motor mounts
Only when accelerating, I would suspect a broken motor mount or bad CV joint.
rubber bushings in motor mount worn
A loose engine mount would not normally cause the engine to fall out because each car has several motor mounts. A loose mount could cause the motor to be off of balance.
Yes you can....I just did it to my car. There is no need for an electronic motor mount- they are over-priced, and can cause damage to your car's ECM. -Glenn K.