GMC Repair: fan blade, clutch tool, chev silverado

Question
How do you remove fan blade from a 2003 chev silverado durmax diesel. Our blades broke when something on the road went up under the truck and broke the blades. Rad is fine.

Answer
Hi
Must remove the upper Rad shroud.
Then use a fan clutch removing wrench (a thin crowsfoot style wrench) that works on a 1/2" drive breaker bar.
If avalible you can also use an air chisel to loosen the clutch, although this MAY cause damage to the clutch hub and should only be a last resort.
You can probably rent the fan clutch tool from a local Auto Zone, Advance or any other large auto parts store that has tool rental/loaner services.
I Hope this helps.