[Jet Sky]

Originally Posted by rmcpherson

Sounds like they overtorqued the yoke nut and have way to much preload on the pinion bearings. Take it back now or you may burn up the differentail.

It does sound like the differential has excessive drag and may be heating up. I'd take it back in soon for them to at least check the oil level. If no satisfaction call Saturn. If it is tight enough that you can feel the difference in how the car drives, caused the MPG to go down, and is heating up enough that you can smell the oil, it may burn up, and may fail big time and lock up! It seems I remember a spec. for how much torque it takes to rotate the yoke to check bearing pre-load.