could be u-joints have someone look at the drive shaft while you rock back an forth leave it in park or in gear NOT RUNNING to see if there is slop in the joints or if your doing it your self grasp the drive shaft try to turn back an forth watch the u-joints for slop
if the vibration is above the range of human hearing which is about 20khz
mainly two types of Vibration measurement: shaft vibration Bearing Vibration
Epicenter
A
SHOULD BE THE BELT DRIVEN ACCESSORY DIRECTLY ABOVE THE CRANKSHAFT (LOWEST BELT DRIVEN ACCESSORY ON ENGINE)
usually the belt driven accessory just above the crankshaft
It is probably an out of balance tire, next check wheel bearings.
above bake peddle
Right above the oil filter.
36.22 As a decimal number, shown above.
check front axle bearings.
Yes, that score is above average.