Here is a link on Amazon for GFO packing (mine took 3/16" square) https://www.amazon.com/Gore-GFO-Marine-Shaft-Packing/dp/B015HU7EQA/ref=sr_1_1?ie=UTF8&qid=1529931242&sr=8-1&keywords=Gore+GFO+Marine+Shaft+Packing+-+3%2F16%22+Square+Cross+Section+X+2+Ft.&dpID=41Y7lxQ-LoL&preST=_SX342_QL70_&dpSrc=srch Dave Hupe1994 Cat320 (#32)Holland, MI