Reading rear diff gear ratio correctly?

The bar does not move but the spider gears do fall down, slide just very very very slightly when rotated if that makes sense… well worn as in trash? Or well worn as in American metal run it?

Thank you for the numbers breakdown , follow up to my OP, will the 2.93 (vs the 3.23 the 4 barrels got) survive behind the modifications I am making to the engine? 4 barrel and a bit larger cam and possibly 235-60-14 tires in the rear?
:steering: