I did a search but still dont know. chevy springs on a fj40 stock axles what spring should i buy? any body got pics of how high they sit and the relocated spring mounts?

What are you building it for ,rock rig or street use or bolth.the easyist way to get longer springs for more flex is go fj55 rears and just make about a 9" to 10" shackel I have two buddys who did it to their rigs and are happy with the way it performs off and on road . the springs will move your axel back 3" so you will have to lengthen your driveline and cut your rear tire finnders but one thing thats real good about it is better departure angle hope this helps you a little if it don't sorry to bother you