We haven't seen the video you saw, so no idea what tools or approach you are using. Helicoil the damaged threads and use all three bolts to mount the tool properly, use the center pressure screw to pull.
I would not apply heat to it. The balancer contains fluid, friction discs and rubber seals in a wet clutch assembly.
I would not apply heat to it. The balancer contains fluid, friction discs and rubber seals in a wet clutch assembly.