oldVOR
forum member
It's not totally about the relationship to the driveshaft.
With the vehicle on a level surface, measure the angle of the transmission output shaft. Then measure the angle of the pinion. Both in relation to terra firma. With a full poly suspension, you want the pinion to be nose down in relation to the transmission by 1-1.5 degrees. This allows for axle windup and for the pinion to always be nose down or even with the transmission output shaft on hard acceleration.
With the vehicle on a level surface, measure the angle of the transmission output shaft. Then measure the angle of the pinion. Both in relation to terra firma. With a full poly suspension, you want the pinion to be nose down in relation to the transmission by 1-1.5 degrees. This allows for axle windup and for the pinion to always be nose down or even with the transmission output shaft on hard acceleration.