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The pulley wobles and the balancer seems to be over working itself. So I think it might be the flexplate. Unlike the 350 and 305s the 400 is externally balanced by the dampener and flexplate. It would explain the wable in the dampener and why it only makes the loud ticking when its in gear. I went to take the inspection plate off (realized the previous owner already did and never put it back on) rotated the flex plate and could not see any obvious damage. But I feel that its the problem just because all the symptoms would match up.