I just rebuilt my cylinders and there just like yours. The hardest part is getting the wire ring that secures the endcap out. If I were you I would order new wire rings when you order the seal kits. You will need to either make or buy something that will allow you to rotate the endcap. As you rotate the end cap the wire ring should come out of the hole and unwind. But if it is anything like mine it was rusted in and had to be pulled with pliers/vicegrips and pushed with a small punch. If they are rusted in I would advice you to get the new wire rings 1st so you know just what you are up against. Because you will need to figure which direction you need to go to unwind them. Good luck.