2010 Trailer: This would not happen to be the Reliable Actuator? If it is, unfortunately Reliable is not longer making them. If this is the case you will have to re-work the whole actuator and the outer member as well as the inner member.
Check out http://www.mastercraft.com/teamtalk/...ad.php?t=48711
if you have a Reliable actuator. If I remember correctly there were at least a few threads started about this. You should be able to find more just by searching.