SOA on CJ7 spring question

[elevatordude]

I'm going to go with the RE 1.5 soa spring up front... I'd like to place my rear axle back 4". ( I went with the poison spyder custom full width kit in the front) using the stock spring buckets in the rear what ready to order spring would keep my lift height the same? I know I'm going with the gen right ext gas tank so I'll have the clearance. I'm know I'm gonna more than likely have to weld spring hangers on the bumper and use boomerang shackles..... Will the RE 1.5 soa work in the rear? Thanks for the help

 

[89wrangler]

xj springs will get you your 4". You should add a second main leaf to keep them from bending and will also need a anti wrap bar if you go spring over.