When a driver engages it, the center differential locks the front and rear drive shafts together so that they turn at the same speed thus delivering equal amounts of torque to the rear and front wheels. Basically, a full-time 4WD vehicle with the center differential locked acts like a part-time 4WD vehicle when the 4WD is engaged.
Kapag ang isang driver humihimok ito, ang sentro na kaugalian kandado ang harap at likod drive shafts magkasama kaya na sila’y sa parehong bilis sa gayon ay naghahatid pantay na halaga ng metalikang kuwintas sa likod at harap wheels. Talaga, ang isang full-time 4WD sasakyan na may center na kaugalian naka-lock gumaganap tulad ng isang part-time 4WD sasakyan kapag ang 4WD ay nakatuon.