I put the Cargomaxx 35% springs for the 4th Gen, to minimize lift. The springs are great, truck handles so much better loaded, and barely different unloaded, compared to stock. We pull a 3 horse trailer, normally with just 2 horses, sometimes 3. I would recommend these to anyone. Pic unloaded, and loaded. I had a hair up my you know what, and traded off my Laramie, but if I still had it, I'd be putting these springs in too. I tried the 70% first, stiffer than I needed, and ridiculous lift. The 35% are perfect
