Carli Suspension Heavy‑Duty Leaf Spring Kit | 2017–2024 Ford F‑250/F‑350 SRW | Rear Suspension Upgrade

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Engineered for Super Duty owners who demand improved load control, reduced rear‑end harshness, and predictable handling under towing and hauling. Carli’s Heavy‑Duty Leaf Spring Kit replaces the factory rear leaf pack with a progressive‑rate design that increases stability, improves ride quality, and maintains proper support under payload.

The progressive spring rate absorbs small bumps with more compliance while stiffening under load, delivering a smoother unloaded ride and superior control when towing or carrying heavy equipment. This is a direct‑fit upgrade for SRW trucks needing stronger rear support without sacrificing comfort.

Key Features

• Heavy‑duty progressive‑rate leaf pack for improved load handling

• Smoother unloaded ride with increased compliance

• Reduced rear‑end harshness and improved chassis stability

• Maintains proper ride height under towing and payload

• Designed for SRW Super Duty trucks

• Direct bolt‑on replacement for factory leaf springs

Technical Specs

• Spring Type: Heavy‑duty progressive leaf pack

• Platform: Ford F‑250 / F‑350 SRW

• Model Years: 2017–2024

• Drivetrain: 4×4 / 4×2 compatible

• Intended Use: Towing, hauling, work‑use, daily driving

• Hardware: Included (as supplied by Carli)

Important Notes

• Designed for SRW (single rear wheel) trucks only

• Professional installation recommended due to spring preload and safety considerations

• May alter rear ride height depending on vehicle load configuration

• Verify compatibility with aftermarket traction bars or rear suspension components

Verified Fitment

• 2017 Ford F‑250 / F‑350 SRW

• 2018 Ford F‑250 / F‑350 SRW

• 2019 Ford F‑250 / F‑350 SRW

• 2020 Ford F‑250 / F‑350 SRW

• 2021 Ford F‑250 / F‑350 SRW

• 2022 Ford F‑250 / F‑350 SRW

• 2023 Ford F‑250 / F‑350 SRW

• 2024 Ford F‑250 / F‑350 SRW