Hi, yes The Cessna valve body is one of the easiest to rebuild. The O ring kits are readily available Nash Equipment in NH 603-2378857, Harolds Logging in Maine 207-942-8331, Lyons Equipment NY 716-938-9175. All sell them. Run around $40 with shipping. When you call tell them exactly what you have! You can take the entire thing apart (break down the individual sections) or just remove the spools individually on the ones that are leaking. Depends on where your leaks are. Check your spools and make sure you don't get them mixed up. They need to go in the same valve body they came out of!Good Luck
Hey thanks a lot for the info, I really appreciate it. This forum is awesome, It's nice to hear from people that really like to help.