I have that Lisle tool and have used it.
You can also buy a tensioner pulley from an earlier year and install it, all the mounts are there, but you will also need to use an AC belt from an earlier year also.
I think they switched from the tensioner pulley system because it can go bad, lock up, break the belt and cause the AC to go out. That happened to my 2001 a couple years ago. My son said the AC stopped working and when I looked at it we found the belt had come off and was broke. The tensioner pulley went bad.