I think you can even "borrow" a steering wheel puller at Autozone but they aren't very expensive and worth every penny.
Make sure you park the truck with the wheels straight ahead and the wheel centered before you pull it off. It will make things a lot easier when you put it back on.
I think this is the same one that Autozone and the O'Reilly group of stores sells.
http://www.toolking.com/products/100...ooglebase=W150
It's also the same one I have in my tool box.