Include

[Texascadillac42]

There is a square 1/2" hole cut in the smooth pulley side of the tensioner that you can put a breaker bar in and relieve tension that way. You either need an unbelievably low profile breaker bar or do what I have done in the past.....

I am sure this is highly frowned upon.....

Take the 3 bolts out of the alternator, tip it forwards, slip the belt over the alt, making sure the belt is on all the pulleys, then push the alternator back down flat, and get the 3 bolts in. (I did this in a parking lot when the belt broke and I didnt have a lo-pro breaker bar with me.