1. Wheel bearings: If the wheel bearings are worn out, they can make a grinding noise when the vehicle is turning. Check the wheel bearings for play and replace them if necessary.
2. CV joints: The CV joints allow the wheels to turn while providing power from the transmission to the wheels. If the CV joints are worn out, they can also make a grinding noise. Check the CV joints for damage and replace them if necessary.
3. Differential: The differential is responsible for distributing power to the wheels. If the differential is damaged, it can make a grinding noise. Check the differential for leaks or other signs of damage and repair or replace it if necessary.
4. Brake pads: If the brake pads are worn out, they can make a grinding noise when the brakes are applied. Check the brake pads and replace them if necessary.
5. Parking brake shoes: If the parking brake shoes are worn out, they can make a grinding noise when the parking brake is engaged. Check the parking brake shoes and replace them if necessary.
6. Driveline: Check the driveline for loose or damaged components
7. Rear differential fluid level: Check the fluid level and condition, low fluid or old worn out fluid can cause damage and grinding noise.