I also tried to set the car in its proper stance to measure up the drive shaft. This is the car resting on the rear axle with the 17" summer wheels for my Audi A4 plus one of the slots for the Dart in the trunk.
Do you think it's sitting low in the rear? The level says the rockers are pretty close to horizontal, actually a little raised in the rear. What is the "normal" angle for the rockers?