rather than study i did the usual researching of truck parts thing....following 4xGeek on the coil spring rates...600 was the lowest, probably rides like a caddy on the street but bottoms out like crazy offroad...switching to 700 pound coils instead, thought about 800 lb. coils but if im running 200 lbs. in the shock and about the same on a second shock that would be too firm for the street.

As far as shackles go, my stock ones are 4.5" eye to eye, im thinking ill look for something that like 4" longer to give me about 2" of lift i need.

97 FZJ80, Stock, Factory Lockers.