Abstract: A vehicle equipment rack and methods for removably holding equipment on a shelf that is removably and preferably releasably mounted within a vehicle. A hook bar assembly has a guide portion, and at least one sliding portion telescopically engaged with the guide portion. The hook bar assembly is attached to the shelf. Two end hooks are on distal longitudinally outward ends of the hook bar assembly, and each end hook is configured for hooking on a headrest post of the vehicle. The end hooks may have hooks that open forward, rearward, or outward and are biased with respect to each other. Preferably, a hook portion is releasably attached to the hook bar assembly for releasing in response to a laterally directed force.