Do you keep at it like that, repeatedly pushing back, just to piss people off? Blaine built that rig from scratch, I saw it while it was being built many years ago. He already told you the axle lengths are not 70". Once again, per Blaine.... "Front is 65 and rear is 64 on Walker Evans bead locks with 4" of back spacing and 37's".
That and the widest front axle I have ever installed is 68" for 40" tires on 4" back spaced rims. I've done many of those.
Jon's rig has a back half we built (never again) to get the coil over springs to clear. The outer face of the back half is the old inner face of the frame and we had to notch into that by nearly an inch at full articulation. I no longer listen to what they want and instead lean the coil over back just enough to get it out of the way of the tire apex. Don't have to notch quite as much that way.
This is 68" front, 67" rear, with 40's and 4" of BS.