Orca Performance Fin 51M-MP36 Installation is a breeze and

Installation is a breeze and requires no tools

* "7-inch" refers to the diameter of the axle

5 inches to your jack's capability

Protects vehicle jack points and frame surfaces

Orca Performance Fin 51M-MP36 Installation is a breeze andThe Orca Performance Fin triples the effective rudder area providing a tighter turn radius and sharp crisp directional control at any speed. The larger surface area of the Orca Performance Fin blocks cavitation better than hydrofoils while adding the benefit of enhanced slow speed maneuvering and heading control. " Your ORCA FIN WITH THE CLAMP MOUNT is an amazing product!!! My crestliner discovery 1450 with a 40 Mercury outboard had a serious problems