I have an 87 Suburban V1500 that's an occasional DD, and mostly used for camping with the family (wife and 4 kids). Occasionally, I also have a need for towing a car trailer with a 3000 lb. car on it. The truck tows the trailer fine, and I'm not over the GVWR or anything, but it sags like crazy in the rear when it's either loaded with camping gear and kids (about 600 lb.) or with the trailer on it. A couple years ago, I installed a 2" all spring lift from Tough Country. I went this route because it was cheaper than getting stock replacement parts. The ride is great, and the truck sits nice and level with no load. Because I only use the truck to tow the trailer occasionally (three times a year at the most), I'm looking for the most cost effective way to solve the sagging issue. Short of having custom springs made, these seem to be a good option. I have a couple of questions though. Has anyone used these, and what were your results? Does anyone know if these will work with the lift springs, or will I need to make a spacer for them? I'm also open to any other ideas that are in the same price range. Of course, if I was towing the trailer a lot, I'd get a rig more suited to the task, but it's really not an option at this point. Thanks in advance for any help!