ok let me get this right?
You think you will fit dual shocks but you dont know what they do.
Ok reasosons for twin shocks are:
to extend the life of dampers or to gain more damping action over a standard unit.
Used alot in off road racing,
Used alot for overland travel,
Used when vehicle is heavily laden frequently,
Twin shocks aid damping, decrease temperature in each corner when the shock is being used hard i.e. When comp safari racing. Seem a bit of an overkill on normal landys. Could possibly limit articulation if fitted badly to a off roader. Jai