96 Drivetrain making grinding noise

My 96 1500W/T is making a grinding noise when driving it down the road. Ive checked the back diff fluid, its okay, the driveshaft & U-joints are okay, Brake drums arent rubbing, No play in the back tires. What else could be going on here????? The faster I go, the faster the noise. Anyone got any other suggestions?????

Possibly a bad wheel bearing, maybe front ?