After breaking my tailshaft (different post) I went to check my pinion angle. The car (67 Coronet RT) had superstock springs in it with an 8 3/4. I switched to caltracs with the monoleaf and +1" ride height.

I put the magnetic angle finder on the 8 3/4 where the snuber would be. It was +3 degrees

I put the finder on the tailshaft, upside down, because the trans is still in the car. It read +1 degree.

So, if I am reading this right, +1 at the trans and +1 at the pinion gives me 0 straight line. So, since the pinion is still +2, I need to get it to -3 (optimal according to caltracs). So I need to reduce the angle negatively by 5 degrees?

Thanks for your help.