I'm guessing this is a wheel bearing, but just to make sure. Most times when I take a right turn, I hear a loud pitch squeek from the rear of the car. It's been getting worse. It's usually when I'm making a sharp right.

 

this should probably be in the suspension section. but it is probably either the bushings in the sway bar or control arms, maybe even panhard bar. you could try oiling them up and see if it stops it temporarily and see what you need to replace

 

you might also want to check your brakes. it could be the pad rubbing on the rotor during your turn .

 

Brake feeler, check your brakes. They may need to be changed...

 

If you haven't fixed this yet, do a search for it. Mine did the same thing and it was the caliper bracket hitting the brake rotor. I put a thin spacer in between the bracket and the mount on the axle and the noise stopped. I think it has something to do with wear and the axles move more and force the calipers to move out further.

 

Wow, Don't know if I would have ever checked that. Thanks!