Sep 22, 2019 · Brakes make grinding noise when the caliper is seized Floating calipers must slide easily along the caliper slide pins or they will not apply even braking pressure to the brake pads. Caliper slide pins can corrode and stick the bores, preventing the caliper from applying and releasing properly. MerCruiser : Shifting. No Results To Display. Mercury Outboard Shifting. OMC IO or Inboard Shifting. Volvo Penta Shifting. Engine Noise. Exhaust Bellows.
Could be axle shafts, these are weak points on these trucks and if they didn't put enough grease under the cv boot, you would get this, more of a popping noise but could grind as well. Don't worry the grinding wouldn't last long if it is an axle shaft, the bad news is it will fail if it is.