What is the grinding noise in the right front of the truck every now and the goi

Hello LDG1, There are only a couple things that will grind in the wheel well: Brakes, Bearings, and Tires. The tires could be scratching against the inner fender well, the brakes could have debris pinched between the caliper and rotor, and the the bearings can fail making a grinding or howling noise. To better understand the issue, when does it happen? What precedes it? What makes it stop?