So , with the car up on jack stands located under the rear end. You measured 2 degrees positive for the rear end pinion centerline? (pointing upward towards motor).
What is the angle of the transmission centerline? You will need to know this to determine the relation of that angle to your pinion angle. Under full throttle, they should be offset, but parallel. At rest, the pinion angle should be pointing down a few degrees in relation to the transmission centerline angle to allow for the upward rotation of the rear end under power.
