{"product_id":"icon-stage-4-suspension-system-for-2023-2026-ford-f-250-f-350-super-duty-4wd-diesel-2-5-lift-with-radius-arms","title":"ICON Stage 4 Suspension System for 2023-2026 Ford F-250\/F-350 Super Duty 4WD Diesel 2.5\" Lift with Radius Arms","description":"\u003cp class=\"product-lead\"\u003eThe ICON Stage 4 Suspension System lifts 2023–2026 Ford F-250 and F-350 Super Duty 4WD diesel trucks 2.5 inches over stock and replaces the front coil springs, radius arms, track bar, and front and rear shocks with a fully engineered, bolt-on package. Front and rear shocks include ICON's CDC Valve technology, giving drivers 10 externally adjustable compression damping settings without removing a wheel. The system ships as five matched components tuned together for diesel-loaded trucks.\u003c\/p\u003e\n\u003cp class=\"product-shipping-note\"\u003e\u003cstrong\u003eShipping:\u003c\/strong\u003e ICON parts ship direct from ICON Vehicle Dynamics, mostly by UPS Ground. Lead times vary by part and some items are built to order, so please allow extra time. We email tracking as soon as your order ships.\u003c\/p\u003e\n\n\u003ch2\u003eTunable Damping Without Lifting a Wrench\u003c\/h2\u003e\n\u003cp\u003eBoth the front remote reservoir and rear piggyback reservoir shocks carry ICON's CDC Valve, adjustable on the vehicle across 10 settings from soft to firm. A driver can soften the ride for an empty highway run and stiffen it for a loaded tow or a rough trail, all without scheduling shop time or pulling the shocks. Because the front and rear shocks are tuned as a matched set, adjustments track consistently across the axles.\u003c\/p\u003e\n\n\u003ch2\u003eRadius Arms Built Around Tire Clearance and Caster\u003c\/h2\u003e\n\u003cp\u003eThe fabricated, fully boxed radius arms replace the factory units with a design that allows on-vehicle caster adjustment and a profile optimized for tire clearance at full steering lock. A 37-inch tall tire clears the radius arm at full lock; tires larger than 37 inches may require fender trimming and additional modifications. The sealed pivot bushing reduces road noise transmitted into the cab and is designed for long service life without routine lubrication.\u003c\/p\u003e\n\n\u003ch2\u003eDiesel-Rated Springs and Proper Axle Placement\u003c\/h2\u003e\n\u003cp\u003eThe dual-rate coil springs in this system are rated specifically for diesel-engine load, not carried over from a gas-truck tune. The included adjustable front track bar corrects axle placement after the lift, reducing the lateral offset that a straight-bar track bar introduces at ride height. ICON states the system produces less body roll than stock and does not require driveshaft modifications.\u003c\/p\u003e\n\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e10-setting CDC Valve damping:\u003c\/strong\u003e front remote reservoir and rear piggyback shocks both adjustable on the vehicle, soft to firm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDiesel-optimized dual-rate coil springs:\u003c\/strong\u003e rated for diesel engine weight, provide 2.5\" of front lift over stock\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFabricated fully boxed radius arms:\u003c\/strong\u003e on-vehicle caster adjustment, sealed pivot bushing, 37\" tire clearance at full steering lock\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAdjustable front track bar:\u003c\/strong\u003e corrects axle placement and improves handling after lift\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e100% bolt-on installation:\u003c\/strong\u003e no drilling, cutting, or welding required; shocks are fully rebuildable and re-tunable\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLifetime spring guarantee:\u003c\/strong\u003e ICON guarantees the springs against sag or breakage\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eSpecification\u003c\/th\u003e\n      \u003cth\u003eDetail\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eFitment\u003c\/td\u003e\n      \u003ctd\u003e2023–2026 Ford F-250 \/ F-350 Super Duty, 4WD, Diesel\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eLift Height\u003c\/td\u003e\n      \u003ctd\u003e2.5\" front over stock (based on 4WD Crew Cab diesel; Tremor package trucks: 1.5\" over stock)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eFront Shocks\u003c\/td\u003e\n      \u003ctd\u003eICON 2.5 VS Remote Reservoir CDCV (part 67800CP), pair\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eRear Shocks\u003c\/td\u003e\n      \u003ctd\u003eICON 2.5 VS Piggyback CDCV (part 37705CP), pair; compatible with 0–3\" rear lift over stock\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eCoil Springs\u003c\/td\u003e\n      \u003ctd\u003eDual-rate, diesel-rated, 2.5\" front lift (part 62516)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eRadius Arms\u003c\/td\u003e\n      \u003ctd\u003eFabricated, fully boxed, on-vehicle caster adjustable (part 64043)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eTrack Bar\u003c\/td\u003e\n      \u003ctd\u003eAdjustable front track bar kit (part 64038)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eDamping Adjustment\u003c\/td\u003e\n      \u003ctd\u003e10 settings, on-vehicle CDC Valve, front and rear\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eTire Clearance\u003c\/td\u003e\n      \u003ctd\u003eUp to 37\" at full steering lock; 37\"+ may require fender trimming and modifications\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eRecommended OEM Wheels\u003c\/td\u003e\n      \u003ctd\u003eCompatible with OEM wheels and tires\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eSystem Weight (ship)\u003c\/td\u003e\n      \u003ctd\u003e219 lb\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eSKU\u003c\/td\u003e\n      \u003ctd\u003eK65893R\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eWho This Is For and Isn't\u003c\/h2\u003e\n\u003cp class=\"product-fit-yes\"\u003eThis system suits owners of 2023–2026 Ford F-250 or F-350 Super Duty trucks with a 4WD drivetrain and a diesel engine who want 2.5 inches of front lift, externally tunable damping, and improved tire clearance for towing, job-site work, or off-road driving. It is compatible with OEM wheels and tires and does not require driveshaft modifications.\u003c\/p\u003e\n\u003cp class=\"product-fit-no\"\u003eThis system does not fit 2WD models, gas-engine Super Duty trucks, or F-350 Cab and Chassis configurations. Trucks equipped with the Tremor package will see approximately 1.5 inches of front lift rather than 2.5 inches. Advanced Driver Assistance Systems (ADAS) require professional recalibration after installation. Trucks equipped with Ford's OnBoard Scales system also require a separate sensor bracket (ICON part 66203), not included. The brake line kit (ICON part 61111) is optional and sold separately.\u003c\/p\u003e\n\n\u003ch2\u003eCommon Questions\u003c\/h2\u003e\n\u003ch3 class=\"product-faq-q\"\u003eDoes this system fit a gas-engine F-250 or F-350?\u003c\/h3\u003e\n\u003cp class=\"product-faq-a\"\u003eNo. The ICON Stage 4 system for 2023–2026 Ford F-250\/F-350 Super Duty includes dual-rate coil springs rated specifically for diesel engine weight. The system is not compatible with gas-engine Super Duty trucks; ICON offers separate systems for gas applications.\u003c\/p\u003e\n\n\u003ch3 class=\"product-faq-q\"\u003eWill this fit my F-350 Cab and Chassis?\u003c\/h3\u003e\n\u003cp class=\"product-faq-a\"\u003eNo. The ICON Stage 4 system (K65893R) is not compatible with F-350 Cab and Chassis models. It fits standard F-250 and F-350 Super Duty cab configurations with a 4WD drivetrain and diesel engine only.\u003c\/p\u003e\n\n\u003ch3 class=\"product-faq-q\"\u003eHow much lift will a Tremor-package truck actually get?\u003c\/h3\u003e\n\u003cp class=\"product-faq-a\"\u003eFord Super Duty trucks equipped with the Tremor package will see approximately 1.5 inches of front lift over stock with this system, rather than the 2.5 inches achieved on a standard 4WD Crew Cab diesel. ICON states this difference is due to the Tremor's factory suspension geometry.\u003c\/p\u003e\n\n\u003ch3 class=\"product-faq-q\"\u003eDoes installation require cutting, drilling, or welding?\u003c\/h3\u003e\n\u003cp class=\"product-faq-a\"\u003eNo. The ICON Stage 4 system is a 100% bolt-on installation with no drilling, cutting, or welding required. Driveshaft modifications are also not required. ICON does note that Advanced Driver Assistance Systems must be professionally recalibrated after the lift is installed.\u003c\/p\u003e\n\n\u003ch3 class=\"product-faq-q\"\u003eWhat is the CDC Valve, and how do I adjust it?\u003c\/h3\u003e\n\u003cp class=\"product-faq-a\"\u003eThe CDC (Compression Damping Control) Valve is an externally accessible adjuster built into the front remote reservoir and rear piggyback shocks. With the truck on the ground and wheels in place, the valve can be turned through 10 settings ranging from soft to firm, allowing the driver to tune ride character for different loads or terrain without removing the shocks.\u003c\/p\u003e\n\n\u003ch3 class=\"product-faq-q\"\u003eWhat tires will clear the radius arms at full steering lock?\u003c\/h3\u003e\n\u003cp class=\"product-faq-a\"\u003eThe fabricated radius arms in this system are profiled to clear a 37-inch tall tire at full steering lock without contact. Tires larger than 37 inches may fit but will require fender trimming and additional modifications. ICON recommends 35x12.50\" tires as the primary fitment.\u003c\/p\u003e","brand":"ICON Vehicle Dynamics","offers":[{"title":"Default Title","offer_id":50631197982790,"sku":"K65893R","price":5837.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0691\/2203\/1686\/files\/16cd8507a174258a3e6a4a610b662276-sq.jpg?v=1791964674","url":"https:\/\/terrainvault.com\/products\/icon-stage-4-suspension-system-for-2023-2026-ford-f-250-f-350-super-duty-4wd-diesel-2-5-lift-with-radius-arms","provider":"TerrainVault","version":"1.0","type":"link"}