Gunny, it takes an E-10 torx socket on the tensioner pulley....crank it CCW and it will release the tension on the belt and you and slip it off.....

This is much easier if you take the fan out first and have lots of room to work.....two clips on top, unplug the connector near the drivers side top of fan, move the radiator overflow hose out of the way and pull it up and out....