Abstract: A drop-in utility enclosure apparatus is set forth for securement within a fowardmost portion of a truck bed wherein the apparatus utilizes a lower unit integrally formed to an upper unit. The lower unit includes a plurality of lockable first and second lids to secure the lower unit for storage of valuable portions therein, such as tools and the like. Each lid includes a plurality of brackets lockable in an upper first position and pivotally downward to a second position to overlie the lower unit in a secure relationship.