steering wheel vibration

Hi, I've got a strange vibration issue while the car is moving. The vibration appear between 80 and 140 kph and there is no clear pattern. Sometimes i can feel the vibration at a certain speed, say at 120, but other times there is no vibration at all. I haven't been able to narrow down any...

Hey all, Looking to track down a vibration in the steering wheel as well as help with a lot of body roll and my imported JDM FJ80 came with the factory winch option in the bumper. I'm not interested in a lift or heavy duty suspension since loading this thing down will make it slower than it...