Appreciate the information Bill. Doing more research regarding getting the u-joints to "work" I found this in a Street Rodder article:
"We should mention here that the pinion on the rearend should be set at the same angle as the trans tailshaft, so if the latter is 3 degrees downward, the pinion will point 3 degrees upward. However, as noted in last month’s article on shimmy cures, the driveshaft should not be perfectly straight from trans to rearend, as the U-joints will run dry and fail. Some angle is advisable in the U-joints, but ensure the pinion and trans tailshaft are at equal angles."
Question: In addition to getting the u-joints to work does the slight offset also reduce drive shaft vibration?