Ford F250 2008 Roll-n-Lock Question
 

I have a 2009 Ford F250 and was wondering if anyone has any knowledge in the roll-n-lock topper system. Are they strictly for the year or will it fit the range of 2008-2010 which ive found to be the same style of body with minor changes.
Im Looking at a 2010 and was wondering if I could bring it with me rather than spending another 1200.00 new. I see them used at certain sites and that is why I am asking if they are compatabile for the years the body style was the same.
thanks for any input
Jimmy