Going RUF/CJ includes using a drop shackle in the rear and maybe in the front depending on how you do it. But using a CJ spring up front will make the spring stick out way beyond what you want unless you start thinking about 33" tires... here is a shot of that setup with 32's.
and here is how you do it...
Going Long - CJ Spring Packs Up Front
If you stick with zook rears up in front, you would need to lose the overload spring and take the #2 leaf from the front packs and add them into the rear packs. This gives you a little more flex while keeping the strength.
Remember that Samurai springs were designed to start/rest in a flat configuration, not like the arched springs you see on lifted spring suspensions.
