The Carli Progressive Leaf Springs (3″ Rear Lift) are a premium rear suspension upgrade designed for 2019+ Ram 3500 4×4 diesel trucks with a 4.25″ axle tube. These full‑length progressive leaf spring packs provide a 3‑inch rear lift to match Carli’s 3″ front suspension systems while maintaining a slight rear‑high stance for balanced leveling and improved suspension geometry. Built for enhanced comfort and performance, the two‑stage spring design softens the initial spring rate at ride height for smoother daily driving and minimizes axle wrap and wheel hop during acceleration and cornering.
Ideal for both on‑road comfort and off‑road capability, these springs help the truck achieve up to 15″ of rear suspension travel with factory shackles while still offering solid load‑carrying performance.
