If the transmission slopes downward 1.25 degrees toward the rear of the car and the pinion slopes downward 2.7 degrees toward the front of the car, the static pinion angle is 3.95 degrees negative, which is acceptable.
The pinion will "go positive" only if it rotates upward more than 3.95 degrees under power. In other words, 3.95" of upward rotation will cause the pinion to become parallel to the transmission.
