The ICON Rear Leaf Spring Expansion Pack for 2007–2021 Toyota Tundra replaces the factory secondary leaves while retaining the main and overload springs to soften the spring rate, improve ride comfort and increase rear ride height by about 1.5". The design maintains factory load and towing capacities and increases wheel travel when paired with ICON shocks. The kit includes a new U-bolt kit and hardware for a straightforward installation.
ICON 2007+ Toyota Tundra Rear Leaf Spring Expansion Pack Kit