One sided adjustable cross rail

An article rack assembly is disclosed, including at least two siderails generally parallel to one another that are adapted to be secured to an outer body surface of a vehicle. At least one crossbar is generally perpendicular to the siderails having a length sufficient to span between the siderails. The crossbar has opposing ends that may each include a support assembly member. The support assembly member may include an actuating lever having a grip portion for facilitating engagement of the actuating lever and a locking portion. A rod member is disposed within the crossbar, and may be staked to each actuating lever such that pivoting of one the actuating levers from the locked to the unlocked position causes a generally simultaneous movement of a locking pin assembly at the opposite support assembly, thereby disengaging both locking pin assemblies from their respective siderails generally simultaneously.