The axle brackets need to be centered on the housing on 30.5" centers with pinion up 1 degree. If you were buying a new 9" from TCI they would make the pinion be 1/2" to the right. It is that way to make sure the driveline does not hit the tunnel.Installing it on a 67. Is the driveline 1/2” offset for the tunnel in play on the 67? And if so basically I’m basing my measurements 1/2” to the passenger side of the center line, correct?