I think you are on the right track.
Most people have a hard time understanding how a driveline should work. Therefore many people who think they know how to set it up are confused.
I have found that the best way for someone to understand how it works, and how to set the angles, is to read the instructions.
These two manuals will help with any and all driveshaft installation and geometry questions:
http://www.roadranger.com/Roadranger/servicesalesliterature/serachresult/RR_DSAG-0200 http://www.roadranger.com/Roadranger/servicesalesliterature/serachresult/RR_DSIG-3311 Personally I have printed them both and put them in a notebook, very handy.
Some important parts cut and pasted from the "Installation Techniques" manual (second of the two links above):
Rule #1, Universal joint operating angles at each end of a driveshaft should always be at least 1 degree.
Rule #2, Universal joint operating angles on each end of a driveshaft should always be equal within 1 degree of each other (1/2 degree for motor homes and shafts in front of transfer case or auxiliary device).
Rule #3, For virtual vibration free performance, universal joint operation angles should not bee larger than 3 degrees. If they are make sure they don't exceed the maximum recommended angles.
Please read the manuals, you will learn something, and be glad you did.
Grigg
