I have a 3.73 posi and am trying to get the gear pattern right. Need a little help please. These pics are just rotating through the gear while spinning the input shaft to see the pattern: These are the pics of the the same shim setup but I am applying drag to input with a shop rag and still rotating through while spinning the input shaft. Question is do I need to move shims? from left to right? Or am I close enough and leave it alone? Any help is appreciated!!!