its a 2009 Fg, brought it low milage 2nd in 2010,, no towbar no hard lid, noise has only just started, only happens around 107 to 114 km/hr, and only when I accellerate, doesnt matter what gear its in either, if I back off the sound goes away? am going in for a wheel alignment tomorrow to rule that out.. Its driving me mad?? diff maybe?? but that was only replaced 6 months or so ago..