The Carli Suspension CS-FCASTERSHIM-25 is a precision-engineered caster correction shim kit designed to restore and enhance front-end geometry on lifted Ford Super Duty trucks. Specifically tailored for 2005–2016 F-250 and F-350 4x4 models equipped with a 2.5" Carli lift or leveling system, this pair of 2-degree shims corrects the caster angle lost during suspension modification. Without proper caster, lifted trucks may experience poor tracking, wandering steering, or even premature tire wear. These shims not only restore the factory caster but increase it by 1°, improving handling, stability, and steering responsiveness—especially when running larger tires. Made from high-quality materials and backed by Carli's reputation for durability, this kit is a must-have for serious off-roaders and daily drivers alike.