I unfortunately sheared the nut that slides over the collar on the spark plug end of one of my leads today. It’s a slick harness, and looking at Champion doc L-1499B the part that broke is an M1673 nut. Assuming I can get one of these outside of a repair kit, can the spark plug end of the lead be disassembled to facilitate replacing this, or does the end need to be cut off and a new assembly performed on the shortened lead?