['63GENIII]

Started off with getting the bed off for better access to the rear spring hangers. I ended up taking it down to the coin op wash to get the frame cleaner before I start. Might even paint the back half while I'm there.
You can kind of get a feel for how much longer the '63 are compared to the original springs which are closer to 50 - 1/2".
The old springs were pretty tired as can be seen.
Lately I have been trying to chase the source of a pretty bad driveline vibration that occurs whenever I take off from a stop, go up a hill or just simply putting some power to the rear. When I drove to the car wash, I looked through the back window at the rear axle several times as I accelerated (sounds real safe huh?) only to see that the axle wrap that occurred would allow not only rotation of the axle but also a 1-1/2" to 2" forward movement of the pinion / axle. I'm hoping this is minimized when I'm done.
I'm also aiming to move the axle rearward 1" to center it better within the wheel well.