"HOUSING WIDTH: 3.875 IN. NOM.; SHAFT MATERIAL: STEEL; GEAR TYPE: BEVEL; GEAR RATIO: 1 TO 1; DISTANCE FROM CENTERLINE OF SHAFT TO COLLAR FACE: 4.750 IN. NOM.; FIRST HUB OUTSIDE DIAMETER: 1.809 IN. MIN.,1.811 IN. MAX.; FIRST HUB LENGTH: 1.125 IN. NOM."