Hope you guys can point me in the direction to solve this issue. It's a '90, 4.0L, AX-15, 2WD. When I'm driving and lift off the accelerator, the MJ starts vibrating. Even if I throw it into neutral the vibration is there. It only happens when I'm completely off the accelerator, any load on the engine and it goes away. I don't feel it in the steering wheel (just the seat of my pants) or while not moving. All help is appreciated.