slight vibration

My new to me Jeep sat for many moons in a barn then in a parking lot for a few more.....at around 40 I get a slight vibration....changed all the u joints(one bad on each shaft from sitting DRY), rear wheel bearings (same story) front diff juice, rear diff juice,repacked front bearings, both pinions appear ok.....the front output shaft on the transfer seems a little loose(can this be tightened or is it a bearing) the vibration is there hubs locked or not two or four wheel.the knuckle joints seem fine....any thoughts?

 

exhaust pipe rubbing/hitting..
bad motor mount(s) or trans mount..

 

the motor mount does look a little funky good thought....