Upgrade your 1999-2004 Ford Super Duty to the modern ride and handling of a 2005-2016 coil-spring suspension - without cutting or welding. Our complete bolt-on axle swap kit allows you to replace your leaf-spring front suspension with the superior radius-arm coil setup found in newer Super Duty trucks.
Designed for strength, precision, and ease of installation, this kit delivers a smoother ride, tighter steering, and better overall performance both on and off the road.
Compatible Axle Swaps
Please specify your donor axle year when ordering:
2005-2007 Ford Super Duty Axle
2008-2010 Ford Super Duty Axle
2011-2016 Ford Super Duty Axle
Each version is tailored to ensure perfect geometry and correct component alignment for your chosen axle.
Included Components
This complete front conversion kit includes everything needed for your swap:
Radius Arm Mounts (Driver & Passenger) - Heavy-duty steel brackets with mounting hardware
Radius Arms (Driver & Passenger) - Precision-formed for proper caster and alignment
Radius Arm Hardware Kit - (Grade 10.9 bolts, lock nuts, and washers)
Coil Springs - (approximately 2" higher than rear)
Front Driveshaft Strap Kit - Ensures secure driveshaft connection and alignment
Mud Digger Track Bar & Mount Kit - Replaces the factory track bar ball joint with a solid mount bushing and keeps the axle properly centered under load
7° Taper Reamer for 2005+ Drag Link - Allows correct fitment of updated steering
Optional Front Sway Bar & Mount Kit - Adapts the factory or aftermarket sway bar to the new setup
Optional Sway Bar Links - Optimized length for the coil-spring conversion
Optional Synergy Manufacturing Steering Linkage - Premium tie rod and drag link assembly for modern steering feel
Key Features & Benefits
100% Bolt-On Installation - No cutting or welding required; only minimal drilling
Transforms Ride Quality - Replaces leaf springs with coil springs for smoother handling
Modernizes Suspension Geometry - Matches 2005+ Super Duty ride characteristics
Improves Steering & Stability - Includes optional upgraded Synergy steering linkage
All Hardware & Brackets Included - Everything needed for a professional-level swap
Important Notes
Works with factory 2005-2016 front axles.
Only drilling is required - no fabrication or welding necessary.
Please provide your axle year range (2005-07 / 2008-10 / 2011-16) when ordering to ensure proper fitment.
Does not include rear suspension components. Depending on your factory configuration, front ride height after install will be roughly 2" higher than factory.
Trimming the slip yoke section of your front driveshaft may be necessary.
Retains factory 1999-2004 steering gearbox and factory pitman arm
2-4 Week lead time as kits are built to order
Bring your 1999-2004 Ford F-250 or F-350 into the modern era with a true bolt-on axle swap kit that delivers the ride, handling, and performance of a new Super Duty - all with no welding required.