Vin trouble
If the pinion is rotated clock wise the right tire rotated counter clockwise as viewed from the left side of the car.
If you turn the axle upside down the right wheel is now on the left side BUT the rotation is still the sameas before. Therefore it will be rotating clockwise as viewed from the left side.
Right side up.
Upside down
It does change.
If the pinion is rotated clock wise the right tire rotated counter clockwise as viewed from the left side of the car.
If you turn the axle upside down the right wheel is now on the left side BUT the rotation is still the sameas before. Therefore it will be rotating clockwise as viewed from the left side.
Right side up.
Upside down