I started with positioning a socket onto the bearing cap and then putting a level on the socket to make sure it was exactly level before taking my measurements.
I don't have access to a completely level surface. My garage floor was sloped for a center drain back when it was biult in 1958 and my driveway is not completely flat either.
I was under the assumption that the angles should all be realative to each other since the car is bolted together.
Remember I know just enough about this to be real dangerous
which isn't helping any.