2011–2016 FORD F-250 & F-350 SUPER DUTY (3RD-GEN) – LOGIQ DUAL-SPRING LEAF-ASSIST LOAD-LEVELING AIR SPRING KIT WITH 6,400 LB CAPACITY & LIMITED LIFETIME WARRANTY

Unlock your Super Duty's fullest potential with the LOGIQ Air Spring Kit — a 100% factory-assembled, bolt-in four-air-spring leaf-assist system engineered specifically for the 2011–2016 Ford F-250 and F-350 Super Duty. This kit uses a unique dual-spring-per-side configuration (four total air springs) with dual rolling sleeve technology tuned to match the ride frequency of the Super Duty's front suspension — delivering the smoothest possible ride in a class of trucks notorious for harsh unloaded ride quality. Proven amongst the hardest-working trucks in America, LOGIQ not only improves load support but drastically increases in-cab comfort when towing and hauling heavy loads. Whether you're pulling a 45ft triple-axle toy hauler (20,000 lbs with 3,500 lb pin weight — per verified customer review of an 8,000-mile coast-to-coast trip), running a Powerstroke diesel work truck, loading your flatbed with equipment, or managing serious gooseneck loads, LOGIQ delivers HD-grade air suspension engineering.

Every detail is engineered for real-world Super Duty use. Unlike cheaper helper kits that simply increase spring rate or add leaf packs, LOGIQ solves load leveling with dual rolling sleeve air springs tuned specifically for the Super Duty's suspension frequency. The result: smooth, controlled ride performance even while towing heavy loads, with 6,400 lbs of total load capacity at 150 PSI and a wide 5–150 PSI operating range. The kit mounts between the frame rail and leaf pack with built-in locating features for precision fitment — no drilling, no welding, no guesswork. If your truck has factory overload springs, the LOGIQ kit replaces them and includes the overload spring removal hardware. This replacement actually improves loaded ride comfort and lifting capacity compared to running factory overloads.

Pair the kit with your choice of LOGIQ Air Management Package (AMP) or run it with the included Manual Inflation Kit for app-free, wiring-free simplicity. The AirIQ HD2 (2-channel smart manifold with Heavy-Duty compressor, up to 2.5x faster than competitors) delivers best-in-class smart air control with trailer presets — perfect for serious 5th-wheel and gooseneck owners. The AirIQ SD2 pairs the same 2-channel smart manifold with the Standard Duty compressor. The AirIQ SD1 gives you a sophisticated 1-channel setup with paired rear controls. All AMP options are controlled via the free AirIQ App or the optional AirIQ Remote. Add the 2-Gallon Aluminum Boost Tank for lightning-fast lifts and sustained air delivery.

Key Highlights:

• Dual-spring-per-side leaf-assist system — 4 total air springs
• Fits 2011–2016 Ford F-250 & F-350 Super Duty (3rd-gen)
• 6,400 lb total load capacity at 150 PSI
• Wide 5–150 PSI operating range
• Dual rolling sleeve air springs
• Tuned to match front suspension frequency for optimal ride
• Fits trucks with OR without factory overload springs
• Replaces factory overload springs — IMPROVES ride & capacity
• Overload Spring Removal Hardware INCLUDED
• Mounts between frame rail and leaf pack — no drilling, no welding
• F-350 SRW and DRW (Dually) compatible
• CONFIRMED 5th wheel hitch compatibility (full list in Fitment)
• 100% factory-assembled kit — ready to install
• Choice of Manual Inflation or AirIQ Smart Air Management
• Optional AirIQ Remote and 2-Gallon Boost Tank
• Limited Lifetime Warranty
• FREE ReadyGUARD 5-Year / 60,000 Mile Powertrain Warranty

Specs

Features

• Dual-Spring-Per-Side Configuration: This is NOT a traditional single-bag helper kit. The Super Duty kit uses TWO air springs per side (four total) with dual rolling sleeve technology — delivering vastly more load capacity, stability, and ride control than single-bag competitors.
• 6,400 lb Total Load Capacity at 150 PSI: Serious HD-grade load support engineered for real Super Duty duty cycles. Verified handling of 20,000 lb toy haulers with 3,500 lb pin weight on 8,000-mile cross-country trips.
• Dual Rolling Sleeve Air Springs: Rolling sleeve air springs provide smoother operation, more consistent pressure distribution, and better durability than static-wall airbags. The rolling sleeve design is the same technology used in commercial truck and bus air suspensions.
• Tuned to Front Suspension Frequency: Unlike cheaper kits that just add spring rate, LOGIQ tunes the air spring frequency to MATCH the Super Duty's front suspension — delivering harmonized ride performance that eliminates the fore-aft "porpoising" common on HD platforms under load.
• Replaces Factory Overload Springs (If Equipped): Super Duty trucks with factory overload springs ("overloads" — the secondary stacked leaf springs that engage under heavy load) will have those removed when installing this kit. The LOGIQ system takes over and delivers BETTER loaded ride comfort and MORE lifting capacity than the factory overload stack.
• Overload Spring Removal Hardware INCLUDED: The kit ships with the specific hardware needed to remove factory overload springs — no need to source additional parts.
• Fits Trucks WITH OR WITHOUT Factory Overloads: Not every Super Duty has factory overload springs. Both configurations work with this kit — the overload removal hardware is used when needed.
• Mounts Between Frame Rail & Leaf Pack: The air springs mount in the space between the frame rail and the top of the leaf pack. Pre-engineered locating features reference off the factory frame — no drilling, no welding, no guesswork.
• 100% Factory-Assembled Kit: Ships ready to bolt in. All four air spring assemblies pre-built, hardware pre-packaged.
• F-350 SRW and DRW Compatible: The kit works on both single-rear-wheel (SRW) F-350 configurations AND dual-rear-wheel (DRW / Dually) F-350 configurations. The air springs mount to the frame and leaf pack, not the axle hubs, so dually rear axles don't affect fitment.
• CONFIRMED 5th Wheel Hitch Compatibility: Unlike the F-150 kit (which has 5th wheel limitations), the Super Duty kit has CONFIRMED compatibility with a wide range of OEM and aftermarket 5th wheel hitches (see Fitment section for the full list). This makes it ideal for serious 5th wheel RV and gooseneck owners.
• OE-Style Low-Frequency Ride Quality: The dual rolling sleeve air springs are tuned for OEM-like ride comfort unloaded, delivering smooth performance even while towing and hauling.
• Precision Fitment: Built-in locating features reference off the factory frame and leaf springs, guaranteeing proper fitment and operation for every install. No guesswork, no shimming.
• Choice of Air Management: The default kit includes a Manual Inflation Kit (airline + Schrader valves + zip ties) for simple, wiring-free operation. Upgrade to one of three AirIQ Smart Air Management Packages for app and remote control.
• AirIQ HD2 (Optional): 2-channel Smart Manifold + Heavy-Duty compressor. Independent driver/passenger air control. Up to 2.5x faster than competitors.
• AirIQ SD2 (Optional): 2-channel Smart Manifold + Standard-Duty compressor. Independent driver/passenger control. 2x faster than competitors.
• AirIQ SD1 (Optional): 1-channel Smart Manifold + Standard-Duty compressor. Paired rear controls.
• AirIQ App Control: FREE download. Control inflation, deflation, presets, and monitoring from your phone. Save trailer-specific presets for one-tap towing setup — ideal for Super Duty 5th wheel owners who manage multiple trailer loads.
• Optional AirIQ Remote: 2-channel wireless remote for app-free quick-access control.
• Optional 2-Gallon Boost Tank: Powder-coated aluminum air tank for faster lifts and sustained air delivery.
• Limited Lifetime Warranty + FREE ReadyGUARD Coverage: LOGIQ air spring kits are backed by a Limited Lifetime Warranty on the air springs, PLUS a FREE 5-year / 60,000-mile ReadyGUARD powertrain warranty.

Fitment

CONFIRMED 5th Wheel Hitch Compatibility: