Actuation member for a proportioning valve for load leveling applications

A braking system for a vehicle having a front braking system, a rear braking system and a load leveling system, said braking system comprising:

• a proportioning valve for distributing the braking of said vehicle braking system between said front braking system and said rear braking system, said proportioning valve being operative in response to a load to vary the amount of braking between said front braking system and said rear braking system and wherein said load leveling system is operatively connected with a suspension system of said vehicle;
• an actuation member disposed between said proportioning valve and a first end of a suspension member of said suspension system which is remote from a connection of said suspension system to an axle of said vehicle, said actuation member operable to exert a first and a second complimentary load on said proportioning valve;
• first means for attaching said actuation member to one of said proportioning valve or said first end of said suspension member of said suspension system;
• second means for attaching said actuation member to the other of said proportioning valve or said first end of said suspension member of said suspension system;
• means for generating said first load, said first means for generating said first load being operative to vary the amount of said first load in response to movement of said suspension system from which said actuation member is attached;
• and
• means for generating said second load, said second means for generating said second load being operative to vary the amount of said second load in response to activation of said load leveling system.