Replaced an alternator and tensioner on a friends '12 Explorer. What a PITA. You can see the radiator fans had to come out, the thing is buried in there. Then to top it off, they give you the 3/8" square in the tensioner to move it in order to install the belt. Great, but once the belt is installed there is a clamp on the frame in the way to remove the ratchet from the tensioner. WTF.... I hate Fords