A door lock device includes a receiver mechanism includes a housing having a chamber for engaging with a casing which has a compartment for engaging with a deadbolt of a lock mechanism, a fastener secures the casing to the housing at a selected position after the casing has been adjusted relative to the housing, a block is engaged in the housing, and a fastener is engaged with the block for securing the block to the housing at a selected position after the block has been adjusted relative to the housing, such that the casing and the block are adjustable relative to the housing to any selected position for fitting and engaging with various kinds of door lock devices.

An adjustable door assembly for a vehicle door can include a striker and an adjustable mechanism connected to the striker that moves the striker to any of a plurality of positions that range from a first position through a second position. The adjustable mechanism can include one of a geared mechanism and a cam lock mechanism. The geared mechanism can include a pinion gear and a rack gear engaging the pinion gear. The striker can be mounted onto the rack gear to move the striker to any of the plurality of positions. The cam lock mechanism can include a first tube, a second tube telescoping in the first tube, a locking bolt, and a lever. The lever can selectively move the locking bolt to an unlocked state that permits the second tube to telescope inside the first tube and move the striker between the first position and the second position.