[Dashman]

It's a trail and error process. It's rarely one and done. The measurements can be correct, but the pattern off. It looks like you need the ring gear more into the pinion for starters. The manufacturer's instructions should show you what you need when the pattern is off. If you have to move the ring gear closer to the pinion a lot, it might also mean that you have to more the pinion out a little. Your initial pattern is off by a lot.