Transfer Assembly Removal

Raise the vehicle on a lift.
Drain the transmission fluid. Reinstall the drain plug with a new washer (see TRANSMISSION FLUID INSPECTION AND REPLACEMENT ).
Make reference marks (A) across the No. 1 propeller shaft (B) and the companion flange (C).

Fig 1: Identifying Reference Marks Of No. 1 Propeller Shaft & Companion Flange
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Separate the propeller shaft from the transfer assembly.
Remove the transfer assembly (A), 10 x 20 mm dowel pin (B), and O-ring (C).

Fig 2: Identifying Transfer Assembly, Dowel Pin & O-Ring
Courtesy of AMERICAN HONDA MOTOR CO., INC.