The VX's are our only rides. So if both are out of commission we have no way of getting to and from work and/or school. And we would have to have the mechanic do the work which would cost in labor any way... Another reason to just have one VX, not two... If they both need to go to the shop you're screwed!
As for what the problem is...
Driving at highway speeds over 55mph I hear a loud grinding noise only when I slowly let up on the accelerator. Not when I am giving it gas or completely off the gas, but in between. The faster the speed the louder the noise. The noise is stemming from the rear and is more prefound near the rear diff. But it also is heard in the front just not as loud. We had it up on the lift that is how we know the location of the noise. We just don't know what is wrong...