2000 ford ranger 3.0 4x4

Hello! New member of TRS here! Figured it was high time I made myself an introduction here and tell a bit about my history with the Ranger. My history with the Ranger goes back just two years when I got my first one at age 16. It was a 2000 Supercab XLT 3.0 Auto. I lovingly nicknamed this...

Does anyone have any knowledge on replacing the rear end differential components? And if so where do you guys recommend to order the parts from? My Ranger has a few teeth chunked off the bottom carrier gear from the previous owner, so I was looking to replace the carrier gears, and the ring and...