I have had truck to the tire place. The rear tores are new. When I make rolling left turns the rear tire squeal in the pavement. The previous tire there did the same thing. Eventually it blew while driving. It blew out on the inside wall where the wall met the tread. This tire is brand new. It still squeals. Same noise. Definitely rubber on pavement sound. Tire place gave things the ok. It is an all terrain tire so maybe that is why. But the last one blew after making that noise and it did not have much wear.

 

Man, this almost sounds like a rear end issue. Like the spider gears are locking up when making a left turn. Very odd though as when spider gears go, they explode and you know it. Not sure if you have a rear end with traction lok or open differential?

Try jacking up the rear of the truck and spin the tire and see which direction the other tire goes in.
Open Dif: other tire spins in opposite direction
Traction Lok: both tires spin in same direction

If your rear end is open differential and both tires spin in same direction, something is wrong inside and will warrant opening up rear end cover for inspection. First check the tag on the rear end cover to see what kind of rear end you have and if its traction lok (posi) or open and then perform the test.

If you have had the truck for a while and never changed the rear end fluid, now may be a good time to do that while inspecting the insides. While your at it, check wheel bearing for any play at each of the wheel and any leaking of rear end fluid.

Im assuming the sway bar isn't broken or a rear leaf spring isn't separating and rubbing on a left turn?

 

You are not giving much information on your Ranger. For all we know you could have a welded differential which could squeal the rear tires anytime you turn.