AL 7-80-05067 Recovery Tank Gas Spring Stud for American Lincoln 7760, 7765, 7770 Riding Scrubbers. This threaded ball stud mounts to a bracket which is mounted on the base of the recovery tank frame. This stud attaches the tank tilt gas spring. This stud is also used on the recovery tank lift cylinders. Two studs are required per cylinder. Priced Each. Replaces Nilfisk American-Lincoln 7-80-05067. Our Part Number AL 7-80-05067