I've got a 9500 Sidehill. The right leveling cylinder leaks down slowey. The left is okay. Both cylindars are the updated style with out the valve block on top. I replace the right cylindar 2 years ago, so it isn't that old. Just wondering if anyone has had similar problem or know of any fixes or tests to do. The only thing i have done so far, is remove the small hose where oil leaks out when cylindars are let down, i didn't get any oil out of it so I think it can be eliminated. I have a repair book, but it talks about the older type of cylindars with a valve block on top. Any help would be great. Thanks