1995 Jeep Grand Cherokee Q&A

1995 Jeep Grand Cherokee Question: I have a vibration/ rumble type noise 65 and faster,

Its not a tire type shake,more like drive train, I've rebuilt front end, new fr drive shaft, u joints in rear drive shaft, any suggestions -
Answer 1
Front hub bearings? Rear axle shaft/differential bearings? Cupped tire tread? -