Rear Drive Shaft

A double offset joint (DOJ) is used on the differential side of each rear drive shaft.
A bell joint (BJ) or a high efficiency compact ball fixed joint (EBJ) is used on the wheel side of each drive shaft.
Rear drive shaft with BJ and DOJ joints

Fig 1: Identifying Double Offset Joint And Bell Joint

Courtesy of SUBARU OF AMERICA, INC.

Fig 2: Identifying Double Offset Joint And High Efficiency Compact Ball Fixed Joint

Courtesy of SUBARU OF AMERICA, INC.