2021-2025 Ford F-150 Raptor 1-3 Inch Lift Stage 4 Suspension System Overland Rear Springs - ICON Vehicle Dynamics - K93174X

After hundreds of hours of R&D and thousands of miles of real world on and off-road testing, ICON engineers have developed products that provide a true performance upgrade over the factory components found on the 2021-2025 Ford F-150 Raptor. The Gen. 3 Raptor is faster and more advanced than its older brother Inch with an all-new 4-link and coil sprung rear suspension system with lots of performance potential and new technology introduced both on the side of safety and performance.

In typical ICON fashion, the new Raptor was pushed to its limits in stock trim to build a list of performance Inchneeds and wants Inch. After this process, the ICON engineering team began to go over the truck front to rear to identify any opportunities to overcome the limits of the OE suspension and achieve the gains laid out in the previous phases of R&D.

Features and Benefits:


The front-end geometry of the Gen. 3 Raptor was found to be very similar to the previous model truck, so the team was able to improve upon the design with a 3.0 Series coilover that has more shaft travel while utilizing a barreled coil spring for more efficient packaging. The vehicle-specific valving featured in these shocks and the ICON-engineered spring work together to provide exceptional on-road ride quality with excellent off-road characteristics. ICON's multi-stage hydraulic InchBump Zone Inch adds to the performance capability by providing an exponential increase in damping ability during the last 40 Percent of compression travel for superior bottom-out resistance. In the ride zone, these 3.0 Series coilovers see an increase in damping ability with the use of a significantly larger piston than what is found in the factory shocks. Finned aluminum reservoirs provide a generous amount of shock oil while also providing an increase in surface area (over 200 Percent) for enhanced cooling and consistent damping.

ICON's exclusive Compression Damping Electronic Valves are included for actively dialing in your suspension performance and improve upon the functionality provided by the factory active shock system. Compression Damping Electronic Valve (CDEV) is an electronically controlled valve that meters the flow of oil to regulate the amount of damping force that is created by the shock when compressed. This infinitely variable valve can react in less than 40ms and has the ability to make extremely precise adjustments for varying terrain. CDEV's hydraulic circuits are also custom tailored per application to create the highest resolution and dynamic range allowable for each specific vehicle. Powered by ICON Intelligent Control (IIC) and proprietary ICON mobile app, the system uses information from the onboard G-force sensor and Gyroscope to perform calculations based on algorithms and user-defined settings to predict terrain and adjust shock settings via the CDEV accordingly. With the shock absorbers no longer directly wired to the Raptor's ECU the IIC/CDEV system also allows drivers to dial in their preferred shock damping settings independently from the selected vehicle drive mode and with more refined resolution than afforded by the factory system. This allows for a more customized vehicle set up with the perfect blend of comfort and performance.

ICON's billet aluminum upper control arms are designed with built-in caster correction for predictable handling and feature on-vehicle camber/caster adjustment for precise vehicle alignment. These upper control arms include ICON's patented Delta Joint Pro, ICON's innovative new suspension articulation joint which combines the durability and longevity of factory style ball joints with performance and strength that exceeds traditional motorsports-style ball joints. Strength and durability are improved by using a larger ball with 56 Percent more bearing surface than our standard Delta Joint, along with improved lubrication sealing. But improved performance is at the heart of the Delta Joint Pro, with a full 90 degrees of articulation, from one extreme to the other. This represents a 14 Percent improvement in range of motion, over the highly capable original Delta Joint, allowing for maximum bind-free suspension movement through the complete range of travel. The Delta Joint Pro is built to take the abuse, with a chromoly ball and shaft that has a bearing surface hardened to Rockwell C 55. The replaceable races are made of graphite-impregnated sintered metal, machined to the finest tolerance to provide a flawless, metal-to-metal bearing interface. We also redesigned the lubrication system, with lubricant channels that distribute grease more efficiently without extending past the bearing seal.

The rear of the updated Ford Raptor was a highlight for ICON engineers, as new changes proved to be for the better. In the R&D process it was found that Gen. 3 had more available wheel travel than was being utilized by factory components, and by way of an offset upper eyelet ICON engineers laid out a 3.0 Series bypass shock that maximized travel while utilizing the factory shock mounts, for up to 17 Inch of total rear wheel travel! To control the rear end in specific ranges of travel, these shocks feature 3 unique bypass zones Inch 2 on the compression stroke and one rebound. Unlike other shocks that have a loud bypass Inchclick Inch when functioning, ICON bypass valves feature damped valve stops for quiet and precise operation. Easy-to-adjust knobs allow for quick changes to shock tuning without the need for tools, enabling the user to dial in their ride with minimal down time. ICON's Compression Damping Electronic Valve (CDEV) is also included for actively dialing in compression damping force, fully independently from the bypass valve settings. A 3.0 Inch Dual Hose Recirculating Finned Reservoir (Patent Pending) incorporates a check valve that allows hot fluid in the shock body to be exchanged with cooler fluid in the reservoir, resulting in the ability for the Raptor to be driven harder for lo…