I have used a puller on mine before. It did not damage the pulley, but the crank sprocket was stuck to the pulley. You then run the risk of destroying the crank sensor. I got lucky. I had to use some gentle heat to get the two apart. Mud was the culprit.

Eddy, does the Gen2 pulley have a rubber insert?

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'97 Montero 'LSR' - 4.6 gears & factory rear locker, 33" Procomp muds on 15x8 steelies, 50mm coil spacers, T-bar crank, Airlift, sans rear sway, 50mm rear frame & fuel tank lift, Aisins, ARB front bumper + 10k lb winch, 50mm DIY body lift, rock sliders, cut rear quarter panels...