Vibration in right front at high speed.have greese on hood in engine comparment on right side

Hi:
You should have your right drive axle inspected, especially the rubber CV joint boot. if it is split open , it is the most likely cause of the grease you found. Unfortunately, the damage to it is already done, and that is what the vibrations are most likely caused by a worn out CV joint. To fix or repair it, you need to replace the cv joint or drive axle assembly

The grease is from the axle shaft bearing protector maybe broken leaving the grease to come out and making a mess, if the axle shaft coupling is defective due to running with no grease it may cause vibration, hope it helps, please rate