I added these to my 2016 F350 SRW to offset the weight of my new 5 (40 foot) toy dump truck. Even though I'm over the truck's weight limit, these things not only keep the truck level but also reduce the bouncy feel of driving down the road. Installation was easy (after removing the factory rusty overload springs). My truck didn't give enough 1.5" clearance after installation, but the truck still doesn't hit them when unloaded, so still a smooth unloaded ride (as smooth as an F350 can be). I am very happy with my purchase and would recommend to anyone pulling a 5 with SRW.