I HAVE A 99' VX IRONMAN WITH 47,000 MI IT IS MAKING LIKE A GRINDING NOISE AT LIKE 45 AND 30 TO 35 AND WHEN I LET OFF THE GAS AT THESE SPEED AND AT LIKE 50 TO 55 IT HAPPENS RANDOMLY I THINK ITS THE REAR END BUT I CANNOT TELL . I HAVE PUT MY HEAD BY THE TRANNY WHEN IT MAKES THE NOISE BUT THE CAR IS SO SHORT I CANT TELL IF IT IS JUST THE NOISE VIBRATING THROUGH THE TRUCK. SORRY FOR MY POOR GRAMMER I AM FROM OKLAHOMA. LOL! PLEASE HELP IF YOU CAN THANK YOU.