If all the pinion setting is required to be determined at the trans out put shaft,then eveytime you adjust your suspension,ladder bar or 4 link do you have to pull the driveshaft and if you can't get the correct pinion angle relationship by adjusting the rearend do you then move the trans I don't think so I agree that when building a chassis you place the driveline so that the u-joints are within the best working ranges.No disrespect to Mr. Morgen,I have read the Doorslammers book and attended one of his classes years ago and found that I disagree on some of his findings.I have never run a ladder bar at negative on backhalved cars with stock suspension,always level or positive.Different strokes for different folks.