Has anyone had any experience with Patrick's mono-leaf spring set-up? They advise they work real well, but in researching this subject I came across Eaton Spring's advise against mono-leafs. My panel's not a hauler, I'd just like a smoother ride and a wee bit of lowering, 2 inches max. My other concern is wear on the U-joint with the stock torque-tube driveline, if the truck's lowered it will be flexing differently than designed for.