Hunter Engineering 20-2334-1 Kit-Jack Seal Energizr Gasket Cup 3-1/8 Bore Washer
5-1/4″ Fits Hunter and QSP Swing Style Rolling Jacks – Save Big! – L56-39: Cup for 3-1/8 bore. – 77-352-000: Washer – Jack Seal Kit. Seal Kit for Swing Jack. – 49-73-2: Gasket – 5.125 Cylinder Base.