Why not leave the springs intact, put it up on stands, remove the ubolts, brake line, shocks, and drive shaft. Then with help of a friend or jack, jack the rearend up, slide it sideways until the brake drum clears the spring, let it down slide it back so the drum now goes under the spring, until the other drum clears the other spring. Then lower the rearend to the floor and slide it the rest of the way out.