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This due to either a worn wheel bearing or a worn front drive arm.
The most common cause of a grinding noise when turning is a worn front wheel bearing. What happens is that the weight of the car is shifted on to that wheel as you make the turn causing the worn bearing to make a grinding noise.
If the problem is as bad as it sounds, you may be close to parking it until fixed. Normally, if you turn left, your are "loading" the right side, and visa-versa. Think of it this way. Picture a car going fast around a turn. The wheel on the inside of the turn might actually lift off of the ground, it is "unloaded". With that thought in mind, look closely at the right front wheel. Start with the brake pads and /or rotor ( what the brake pads rub on to stop the car.) Check the rotor inside and out. A good flashlight will do. Pull the right front wheel and see if the pads are worn out or the rotor is no longer smooth, but "torn up" on the inside or the outside. If the pads and the rotor is fine, next look at the wheel bearings. This will be a bigger problem, probably a shop needs to check this out.
It's hard to say exactly what it is, but here is the best and fastest way to check it yourself. Safely jack the tire off the ground so you can freely spin it. An remember do all of this with the tire on. It will give you the leverage you will need and it simulates more real world conditions. But after you jack the tire and rim off the ground. Spin in backwards and forwards and see if you can hear any noises. Also grab the tire and see if there is any up and down or left and right slack or play in it. If there is. You may have a bad wheel bearing. The reason it wasn't detected was because it hard to properly diagnos a bearing if you don't have enough leverage to apply pressure to the bear. Where as leaving the tire and rim on you were able to creat the leverage and pressure to check for slack and wear in the wheel bearing. Hope this helps.
Is this a front wheel drive car? If so, the noise may well be from a CV joint coming apart. Given the extent of parts you have replaced, not much is left. Also might look to see if something is rubbing on a part of the rotating wheel / hub assembly.
3 things to check:
Worn disc brake pads, grinding against the rotor.
You posted grinding gets worse turning to the right, the problem is the driver side wheel, but it would be best to have both wheeles checked.
Check the condition of the wheel bearings, front and back side if the brake rotor, and the back side of the rim. Everything should be clean, rust build-up can throw everything out of true. The hub or wheel-bearing should be tight and smooth when spun.