Got a little further today and all is buttoned up....
gotta get the car down on its suspension and set the preload as well as hope all my measurements worked out and get the 325/50/15's in there as well as the 315/60/15's in a stock wheel housing
I installed 1" relo kit as well and all fit perfect... I had the dana cut to 54 5/8 which is about 1/2 narrower that the 66-67 b body specs to brings the wheels a little in more to the frame... perches are 44" center to center.... Tire fitment will be next and measure for an aftermarket driveshaft also... I really like the UBolt setup on the yoke as opposed to the stock strap style setup
Here is some updated
I will have to touch the paint up some as I scratched her up here and there