Hi there jonhelp,
You may find the information in the article below helpful.
About SyncServices
http://support.apple.com/kb/HT5847
OS X Mavericks
OS X Mavericks v10.9 and later do not use SyncServices. Instead, Mavericks supports sharing your information using several network-based and cloud-based solutions. If you want to sync your information across multiple devices and computers, you should use one or more of these methods. These include iCloud, CardDAV servers, CalDAV servers, and servers that utilize the Exchange ActiveSync protocol.
-Griff W.