Cracked Differential

Parked my 2015 TH after a short highway trip and noticed oil on the back of the tailgate. I crawled underneath the vehicle and discovered that the front of the rear differential was cracked. I have never driven this vehicle off road. Does anyone know if I can replace just the front portion of the differential? There are bolts so it seems like it can be removed. I’ve attached pictures.
Thanks for your help!