So got some time to dig into the baconator again.
Cut off the perches on the 70hd:
Pulled the fuel tank and installed the shackle flip:
The 70hd axle is the longer one 14 bolt is the shorter. Pretty comparable.
Used rachet straps slinging the axle to the frame on each side (tank's idea) to lift, center, and set the angle for the new perches. Welded them in place and bolted the axle in.
Had to see what it will look like once the H1 wheels and tires are on.
I still need to replace all the rear bushings, get the disc brakes mounted, finish my home built shackles, weld on the shock mounts, and measure for the driveline which needs cut down shorter. Then the front will begin.
Also safety first