2017-2025 Super Duty Carli Full Progressive Leaf Spring Kit - 4.5 inch Lift | CS-FFSP-17

SuperDuty Carli Full Progressive Leaf Spring Kit Features:

• Block eliminating, Full Progressive Spring Pack
• Includes new U-Bolts and Rear Bump Stop Drops
• Provides a 1", rear high stance on Matching 4.5" Suspension Systems
• "Light" 3/4-Ton Capacity, Full Capacity Attainable with Long Travel Airbags

Carli's Full Progressive Leaf Spring Kit Creates Improves Spring Rate Progression

Upgrade your suspension system with Carli Suspension's innovative collaboration with Deaver Leaf Springs. The 2017-2025 SuperDuty Carli Full Progressive Leaf Spring Kit is specifically designed to complement 2.5" and 4.5" suspension lifts, this leaf spring pack offers an enhanced riding experience without sacrificing load capacity. Unlike factory leaf spring packs that result in a harsh ride, this solution features a 9-Leaf main pack and a 3-Leaf overload, providing improved spring rate progression. Unleash the potential of your vehicle with a more comfortable ride, increased suspension travel, and improved handling on and off the road. Trust Carli's expertise and precision engineering to deliver a superior solution for your suspension needs.

Smoother Suspension Cycling

By replacing your existing leaf springs with the 2017-2025 SuperDuty Carli Full Progressive Leaf Spring Kit, you can expect a softer unloaded ride, a significant increase in suspension travel, and impressive capacity as the rear end compresses, engaging all the springs. This translates to a more predictable and supple ride, whether you're cruising on the highway, venturing off-road, or towing heavy loads. This spring pack is engineered to your Ford truck's exact specifications, ensuring optimal performance and supporting up to 15" of wheel travel. The center-pin is relocated to accommodate tires as large as 38" (37" recommended), and it levels the rear perfectly to match 4.5" front suspension systems. With this comprehensive upgrade, you'll experience smoother suspension cycling in all driving scenarios, giving you confidence and control wherever you go.

Fitment: 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025 Ford F250/F350 4WD (with 3.5" Axle Tube)