my alternator went out last night and i have a new one sitting here . I cant get the bottom bolt out of the alternator bracket, it backs all the way into the radiator and wont slide any further, i know there is some kinda trick to getting the thing out but i lft my FSM at my fathers and cant get over there to get it, somone ..be so kind as to tell me wtf i need to do to get this thing out, please

 

sorry, its a 93 F150 with a 4.9L w/AC