i lucked out today ! i had to hurry up and get my tools transferred over from my pick up to my sons pickup he recently traded a friend for. its a 91 f-150 with inline 300 6 banger well luck has it the next morning i fire it up and turn on the defroster to clear up the windows and wouldn't you know it.......fogged up windows due to the hearter core leaking. limped through the day with no heat and a lot of wipeing of the inner windshield with papertowels that oilly residue really isnt easy to get off when your in that situation. well today i went out to a planned bypass of the core and tackle the removal of it as i just knew it would be a bear. 15 minutes its out and after bringing back new one 10 minutes its in . so less than an hour i'm good to go. ive never had that much success on a repair like that . all i had to do was take a sawzall and cut the passenger side of the dash off and it was right there !!!!!!!!!!