[Dray]

While replacing the water pump on my 87', 5.0 Mustang, I snapped one of the bolts at the threads. In order to repair it I have to remove the part that separates the water pump and the block. In order to remove that part I have to remove the vibration damper. I tried removing it with a universal puller and also tried the crankshaft bolt but the crankshaft keeps turning. What's the best, easiest way to get the vibration damper off?
Help!

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