fan clutch replacement

[smashed&bent]

trying to get the fan clutch off. what tools do i need to get the clutch and fan off the water pump. is it something i can rent from autozone? also, anyone know the exact size of the nut that holds the fan clutch to the waterpump (its huge!)? thanks guys!

[NoMoGMPG]

You can buy the special tool at Napa for about 40 bucks. It comes with the pulley holder and wrench, just ask for the GM size, not the Ford. I believe the size is 34mm. The pulley holder can be fragile if you don't get a good one, the pins on the Kent-Moore version ALWAYS shear off, the Napa one requires you to use a couple bolts, #10-32 I believe, into the holes as anchors.