Thanks Moses, as an old retired Navy Gunnersmate, electronics is part of training. I like analog over digital, just the way I was taught.
As you pointed out drive shaft lengths are always part of a Swap.
I already ordered Jeep Cj Rebuilder's Manual, 1972-1986: Mechanical Restoration, Unit Repair and Overhaul Performance Upgrades for Jeep Cj-5, Cj-6, Cj-7, and Cj-8/Scram it should be delivered on the 29th and I have reviewed the five videos you and Tony did on the 4.0 stroker project. I am leaning toward the 4.6 rebuild as I want a complete package rebuild before I pull the old 258.
Thanks for the advice and am looking forward to further dialog and sharing my pictures.
R/
Don