PINION ANGLE is simply THAT......PINION ANGLE. And pinion angle is SIMPLY defined as the relationship of the pinion and the driveshaft.....That's it, ALL there is to it....... So if you want 3 degrees of pinion angle, you break out the protractor, measure the pinion flange, the driveshaft angle, set it at 3 degrees difference and you are DONEMonte