Maybe I picked the wrong shock on the website.. But Yesterday I helped a buddy install a lift and he got the Bilstein shocks. They used his stock spring but the shock was adjustable to give you either stock height 2' (i think) and 3'. But anyways, thats where I got the idea to go the same route with my ranger up front than get some advice on the rear.
Here's a pic of the truck we did:
The rear hasn't been finished yet, so that's why its sitting nose high. But its not going anywhere until the rear is leveled out anyways.