Yes, you'll need to pull the fan. It's not difficult, just tedious. I would loosen the 4 fan bolts, remove the tension on the alternator & then wiggle the fan forward. Don't hit the radiator :)
Too avoid possible damage to the radiator - take some wide blue painters tape and put on the radiator where you are working. This will help to avoid damage and also save the skin on your knuckles. Been there done that as I put a fan shroud on my 72 Duster last week and did not want to remove the radiator to do it. It's very time consuming so - be patient. :-)
