Daihatsu 150k vibration only when the gas is press from 80 km and about

hi there,

i live in japan and i have a daihatsu terioskid 4wd automatic transmission and 150,000km. i am having a vibration/noise problem in the car when i am running 80km and above. only when the gas is press if i release the pedal the sound goes away the higher the speed the more noise it make i just balance and rotate the tire but still no luck i hope you can give me any idea from which part is costing this thank you very much