I put my angle protractor on the front balancer and find the center line is at a strong 4* degrees. Then I put the protractor on the rear housing and also on the pinion yoke and have a negative 4* to 5* degrees. This means I have approx 8* to 9* degrees down? I have since moved the rear to be at about 2* to 1* down which should put me around 6* down which is where I think I want to be.