Rudder Assembly is specific to direct drive assemblies only. This is a updated unit for older models and will come with the standard 4x4 rudder box. On some older models, you might have a narrow style rudder box and need to use your existing one or purchase in the link below
Malibu MH Rudder Box
Please note, that this rudder does not include hardware.
Recommend to use Marine Adhesive when installing: 3M 5200