I developed some 2wd front lift springs that max out the travel just like Pennyman described in post #3. They are 20% stiffer than stock, progressive wound, direct fit, same uninstalled free height as stock. They require better shocks, Rancho 5000 would be the least that would qualify. You need better quality lower bushings and all balljoints. Installation is a chore, can advise on custom spring compressor if you don't have the good $100 KB tool.
PM me if interested.