Levelling Box (Less Fork) - 3/4 UNC - Sparex Part S.16762Levelling Box (Less Fork) 3 4 UNC Sparex Part No. S. 16762 This high quality levelling box (less fork) is a perfect replacement part for your Massey Ferguson tractor. It features a 3 4 UNC thread size and is compatible with a wide range of models, including the 133, 135, 140, 152, 20C, 230, 245, 3165, 35, 50, and FE35 series. Key Features: Brand: Spenco Thread size: 3 4 UNC Thread length: 139mm (5 15 32 in) Knuckle Bore : 16. 5mm (5 8 in) Knuckle