Rear Axle U-Bolt Heavy Nut.  7/8"-14 x 1-1/8" Thick.  #30-3289443. Used With 30-3023338 U-Bolt. Replaces S817

Pack Of 6

Fits:

Oliver 1750, 1755, 1800, 1850, 1855, 1900, 1950-T, 1955, 2050, 2150.

White 2-85, 2-88, 2-105, 2-110, 4-150, 4-175.