You need to open the front and rear side access doors, clean the mounting surfaces of the hinges with a clean rag and mark the rear
Door Hinge locations on each surface with a grease pencil, or other suitable markers. Then you need to support the rear side access door and remove the bolts retaining the hinge to the door. After that, you need to remove the bolts retaining the hinge to the body. Finally, you need to remove the rear side access door hinge from the body.