Add-A-Leafs are for truck and SUV's with a winch, heavier bumpers, or just do a lot of towing and hauling. You may need to consider installing a Add-A-Leaf. Add-A-Leafs will increase your payload capacity by 250 lbs to 500 lbs and give you additional height. These Add-A-Leafs can be easily installed with basic hand tools. The amount of lift an Add-A-Leaf gives your vehicle may vary depending on the condition of your OEM leaf springs and the vehicle weight.