A method of manufacturing a fiber optic connector with a desired ferrule biasing force by first providing a partially assembled fiber optic connector with a front housing slideably to a rear housing. The method includes pressing on a ferrule end face at the distal portion of ferrule with a force measuring device; moving the ferrule end face a predetermined distance relative to the front end of the front housing in a direction toward the rear housing while the force measuring device is pressing on the ferrule end face; moving the rear housing in a direction toward the front end of the front housing until the force measuring device measures a predetermined force.