Vehicle ladder rack assembly

A ladder rack assembly, comprising:

• a base member having an inner surface, an outer surface, a first end portion, a second end portion, a first side, and a second side;
• a sliding member having an inner surface, an outer surface, a first end, a second end, a first end portion, a second end portion, a first side portion;
• and a second side portion;
• wherein said sliding member is linearly slidable relative to said base member;
• a ladder mounting member having an inner surface, an outer surface, a first end portion, a second end portion, a first side portion, and a second side portion;
• wherein said ladder mounting member is axially and radially movable relative to said base member;
• one or more first shafts;
• one or more first drive members having a first end portion, a second end portion and an intermediate portion interposed between said first and second end portions;
• wherein at least a portion of said first end portion of said one or more first drive members are drivingly connected to at least a portion of said one or more first shafts;
• wherein at least a portion of said second end portion of said one or more first drive members are pivotably connected to at least a portion of said first end portion of said first side portion of said ladder mounting member;
• one or more first linkage members;
• wherein at least a portion of a first end portion of said one or more first linkage members are pivotably connected to at least a portion of said intermediate portion of said one or more first drive members;
• and
• wherein at least a portion of a second end portion of said one or more first linkage members are pivotably connected to at least a portion of said first end portion of said sliding member.