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

Most people have there own way of explaining it, some right, some wrong, these Spicer manuals can't be argued with, after all, back in 1904 Mr. Clarence Spicer did invent and patent the U-joint we still use today.

Grigg

•1951 GMC 250 in the Project Journals
•1948 Chevrolet 6400 - Detroit Diesel 4-53T - Roadranger 10 speed overdrive - 4 wheel disc brakes
•1952 Chevrolet 3800 pickup
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"First, get a clear notion of what you desire to accomplish, and then in all probability you will succeed in doing it..." -Henry Maudslay-