My project truck is quickly nearing the axle swap/suspension stage and I'm putting together ideas in my head so I know what to order. I'm going to be running a 4" shackle flip in the rear and I'd like an additional 2" back there. Tuff-Country makes 2" add-a-leafs...any opinions? I'm not shelling out $310 for a new set of rear springs but I'd really rather not have a block in my suspension. If anyone has ideas let me know. The add-a-leaf looks like the best option now but I have a feeling that quite a few of you are going to say otherwise. Thanks for any help.