2006 f150 rear end clunking
I have a 2006 f150. When I start out turning you can feel something clunking in the rear end. I took differental cover off. Fluid looks good. All the gears look good. I put truck up on jack stands. With truck in park. I have a hard time turning a wheel. When in neutral, the wheel turns easy and the differental gears don't move at all. The ring is stamped 373. Any suggestions?