So by shimming one side was the only thing that seemed to give me more space. Just adding the two shims left the teeth with no gap. It seems like the shims just push it down instead of out. I guess since it's round it technically doing both. But I should make sure I'm following you. When I say pinion I'm talking about the gear that shoots out and spins the flexplate. Am I calling them the wrong things? What are you referring to when you say drive gears,