Rock Krawler RK05823 4-Link Upgrade | 2017-2022 Ford F250/F350/F450 Super Duty 4WD

Features:

• Fits 2017–2022 F-250, F-350, F-450 4WD
• Compatible with gas and diesel engines
• Engineered for 3" to 8" lift systems
• Complete bolt-in installation, no drilling required
• Upgrades factory radius arms to 4-link setup
• Improves off-road articulation and suspension travel
• Delivers smoother ride on and off pavement
• Includes four 2" solid steel link arms
• Brackets made from 1/4" laser-cut steel
• Serviceable 1 3/8" Krawler joints at frame
• Allows precise axle positioning and alignment
• Built for long-term durability and high performance

Take Control Of Your Front Suspension Like Never Before

If you're ready to ditch the limitations of factory radius arms and give your Super Duty some serious front-end performance, the Rock Krawler RK05823 4-Link Upgrade is the move you want to make. Whether you're hitting trails or just want a smoother, more planted feel on the highway, this kit transforms your truck’s handling with noticeably better articulation and control. It’s designed for 2017-2022 Ford F-250, F-350, and F-450 4WD trucks and delivers a balanced ride that keeps your front axle positioned right where it needs to be. With four beefy fabricated arms and precision brackets, this kit bolts in without any cutting or welding, so installation stays straightforward and clean. You’ll immediately feel the difference in how your truck tracks, especially through turns or over uneven terrain. The kit also looks the part, built from rugged 1/4-inch laser-cut steel and finished to take on years of punishment. If you’re lifting your Super Duty anywhere from 3 to 8 inches, this upgrade brings a whole new level of confidence to your setup.

Built To Fine Tune Geometry And Withstand Abuse

The Rock Krawler RK05823 is more than just a lift accessory, it’s a full 4-link conversion system engineered to maximize ride quality and axle stability across a wide range of lift heights. It's designed for trucks running a 3-inch to 8-inch lift and comes complete with four 2-inch solid steel link arms, 1 3/8-inch shank Krawler joints at the frame, and all the necessary mounting brackets. The hardware is heavy-duty and intelligently designed, using serviceable joints that can be rebuilt over time rather than replaced. These joints help maintain proper caster and axle position during articulation, reducing bind and improving how the suspension cycles both on and off the road. Unlike traditional radius arm setups, this system frees up your front axle to move more naturally, especially under extreme compression or flex. It’s compatible with both gas and diesel 4WD Super Duty trucks and requires no frame modifications, making it a clean and functional upgrade. If you're after high-performance geometry control without cutting into your chassis, this 4-link setup gets it done with engineering that speaks for itself.

Fits: 2017, 2018, 2019, 2020, 2021, 2022 Ford F250/F350/F450 Super Duty 4WD

Notes:

• Fits 2017–2022 Ford F-250, F-350, and F-450 4WD trucks
• Compatible with both gas and diesel engines
• Not designed for 2WD applications or post-2022 models
• Engineered for trucks with 3" to 8" of front lift
• Replaces radius arms with a true 4-link configuration
• Improves front axle articulation and on-road handling
• Includes solid steel arms and 1/4" laser-cut brackets
• Fully bolt-in design with no cutting or welding required
• Uses rebuildable Krawler joints at the frame connection
• Allows precise axle positioning and alignment correction
• Requires 000 grade grease for proper joint maintenance
• Professional installation recommended for best performance