Synergy 5016 - Jeep JK Unlimited Three Seat Bracket - Manual (Page 5)

6) Now that all the attachment bolts / nuts have been removed, we can remove the
larger half of the rear bench. The attachment point linking the 2 halves together is
a mounted stud, so the seat needs to come up (to clear the rear stud in the floor)
and over to the passenger side of the vehicle for the bench to be removed. The
seat is much easier to remove with an extra set of hands as the seat is rather heavy
and cumbersome.
Once removed, the Jeep should appear as shown in the images
below.