No need for apology, I just didn't want to start a war between 2 of our most experienced members! Different strokes & all that. As far as adapting the JC springs to the CJ, even that is beyond my capability at the moment, I'm going to be going in for hip surgery soon & I'm somewhat limited in my mobility. But, the initial measurements I took on the Commando springs were the same as a CJ spring from shackle to axle on the front. The distance from fixed end to axle on the rear is the same as the CJ rear from shackle to axle. So in essence, I'd be doing what Holbrook did, using longer springs with an offset center pin, and just relocating the fixed end. I think I could handle that, if I get healthy. The idea of cutting everything off the frame & trying to locate it from scratch scares the hell out of me, I think that's beyond what I want to tackle. Edit; when I started this thread, I was under the assumption that it was necessary to extend the frame to install the YJ springs. Some further research shows that's not really the case, but there's still the issue of getting everything placed properly & shackle angles correct. I'm a pretty good mechanic (parts changer). Fabricator, not so much.