If a groaning noise is heard from the rear of the vehicle while making turns, the limited slip differential should be inspected. Components should be inspected and replaced as needed.
Car Problem Reports
Saab 9-7x Groaning Noise Heard From The Rear While Turning
Saab 9-7x Problem
Average Mileage: 49,000 mi (17,000 mi - 81,000 mi)