Right hand leveling box assembly CAT I 20-1/2 inches closed 26 inches extended. Leveling box has 5/8 inch clevis pin hole. Bottom fork has a 5/8 inch hole. For 1/2 inch thick arm. For Massey tractor models: TO20, TE20, TO30, Late TO35 & Early MF35

Right hand leveling box assembly CAT I Heavy Duty Leveling box has 5/8 inch clevis pin hole. Bottom fork has a 5/8 inch hole. For 5/8 inches thick arm. For various Massey tractor models such as MF35, 50, 135, 150, 230, 235, 245, Industrial 20, 2135, 202, 205, 302, 304

Right hand leveling box assembly CAT II Heavy Duty Top knuckle hole is 7/8 inch and the box has 3/4 inch clevis pin hole. Bottom fork has a 3/4 inch hole. For 3/4 inch thick arm. For various Massey tractor models such as 175, 265, 275