rpm rising at whghway speed in turns

Hello. My daughter recently had me go for a ride in her car. 96 grand am 4 cyl. The car at highway speeds while making left turn the engine rpm raises. like the transmission is slipping or something. It only does it in a left hand turn above 55 mph. If you let off the gas pedal and the reapply it is normal until you steer into the turn again. only way to get it to not do it is to slow down. What would this be. transmission, wheel bearings, cv joints? Thanks

Checked the fluid level?