Fred, I removed the through bolt, cut the band that holds them together (haven't replaced it....yet), left the shortest (about 12") spring, removed the next 2, left the 4 longest ones, re-installed the through bolt, installed the 1" lowering blocks.....all with the stock u-bolts. Let me know if you want pics. I don't have measurements right now for you to compare to yours, my front end is on jack stands while I'm working on it.....should be on the ground in a week or so. Also, I'm running my dual exhaust UNDER my rear axle, so no clearance issues there & still above the scrub line.
My post #41 shows before/after pics with 3" lowering blocks/worn stock springs & new Posies 3" lowering springs......& post #67 shows before/after pics with Posies 3" lowering springs & after with the 2 leafs mentioned above removed (I also removed 2 leafs from the front at the same time). No pics right now with the 1" blocks installed.
EDIT:I did not cut the bands that secure the springs.....don't know what I was thinking.