One of the issues Adam mentioned was the tail shaft center bearing being flogged out, I took the shaft down to be rebuilt after a conversation with the owner of the shop it was decided a whole new shaft was the best way to go.
so after taking measurements and waiting a week my new shaft was ready to pick up
new and old shafts next to each other, yes the new one piece shaft and was worried about vibration, after driving the car turns out that there is nothing to worry about