RK02561 Add-a-Pack Progressive Rear Spring - Single

Features:

• Progressive Add-A-Pack Spring
• Turns Your Factory Spring Pack Into A Full Progressive Spring Pack
• For Rear Leaf Springs
• Maintains Smooth Ride Quality
• Increases Off-Road Performance
• Made From Steel
• Black Powdercoat Finish
• Sold Individually

Premium Rear Spring Kit for F250/F350 4x4

Rock Krawler Suspension is the leading manufacturer of Light Truck and SUV suspension systems and related components. Each and every component or complete suspension system is precision engineered to provide huge gains in ride quality, off-road ability and durability. Our Off-Road inspired suspension systems are built for abuse and tuned for the street!

Fitment: 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026 Ford F250/F350 Super Duty 4x4 Powerstroke

Notes:

• Fits 2005–2026 Ford F-250/F-350 4WD PowerStroke models
• Not compatible with 2WD or gas-engine trucks
• Transforms factory rear leaf springs into progressive pack
• Enhances rear ride quality without sacrificing durability
• Improves off-road performance and axle control
• Ideal for trucks that see both street and trail use
• Made from high-strength steel with powdercoat finish
• Sold individually, purchase two for a complete setup
• Designed to maintain load capacity while softening ride
• Helps reduce harshness from factory rear spring packs
• Professional installation recommended for best results
• Engineered by Rock Krawler for 4x4 Super Duty platforms