'07 to '10 is the same size.
I am actually using one in my '08 from a '06. It is a little bit smaller but works well enough.
If you buy it used make sure to get the pivot points. They will sell them seperate at the dealer but cost $25 if I remember right. One dealer told me I had to buy the extender to get the pivots, the next dealer had no problem ordering them.
One dealer told me I had to buy the extender to get the pivots.
I agree! That was why I drove 2 miles away and found a counterman that could order it for me.This dealer is either a rip-off or has a dumbazz for a parts tech!
I think if you lock in the extender from the opened tailgate side in a downward motion, then swivel the extender into the bed, shut and lock your tailgate, then someone can't get it out. I think that's how to stop someone from stealing it, that's how I have mine.