ICON Stage 4 Suspension System with Billet UCA for 2015-2020 Ford F-150 4WD

The ICON Vehicle Dynamics Stage 4 Suspension System is a bolt-on lift and performance upgrade for 2015–2020 Ford F-150 4WD trucks, raising ride height 2–2.63" over stock (1.5–2.13" on Power Stroke diesel models) through a matched set of front coilovers, rear piggyback shocks, and billet aluminum upper control arms. The system ships in multiple boxes and covers both front and rear suspension in a single purchase.

Shipping: 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.

Increased Wheel Travel Without Sacrificing Control

The front coilovers in this Stage 4 system are 2.5" diameter units with remote reservoirs, tuned specifically for the weight and geometry of the 2015–2020 F-150. Remote reservoirs increase fluid capacity, which reduces heat buildup during sustained off-road use and keeps damping consistent when the suspension is working hard. Height adjustment across the 2–2.63" range lets owners dial in ride height for a specific tire size rather than accepting a fixed lift.

Rear Valving Matched to the Front

The included ICON 2.5 Aluminum Series piggyback reservoir rear shocks (p/n 97720P) use vehicle-specific valving developed for the lighter curb weight of the 2015–2020 F-150 platform. One-piece impact-extruded aluminum cylinders provide corrosion resistance and a consistent finish over time. The rear shocks are compatible with 0–1" of rear lift over stock on most models. Builds requiring more rear lift will need additional components.

Billet UCAs with the Patented Delta Joint

The billet aluminum upper control arms (p/n 98505DJ) replace the factory stamped-steel arms and help retain factory alignment spec range while increasing caster over stock. That caster gain is a meaningful benefit for daily-driven trucks that need to track straight on the highway. ICON's patented Delta Joint replaces the conventional uniball: a zinc-plated housing and grease seal block moisture and debris from the joint internals, while metal-on-metal construction and a greasable design extend service life. The Delta Joint allows greater articulation than a standard ball joint while offering more weather protection than an exposed uniball.

Features

• Bolt-on installation: no cutting or welding required
• 2.5" remote reservoir front coilovers: vehicle-specific tuning with Eibach coil springs and CAD-plated shock body with 7/8" shaft
• Height adjustable: 2–2.63" lift (1.5–2.13" on Power Stroke diesel models)
• Billet aluminum UCAs: 6061 aircraft-grade aluminum, CNC machined, with patented Delta Joint and FK rod end bearings
• 2.5 Aluminum Series piggyback rear shocks: impact-extruded aluminum cylinder, vehicle-specific valving
• Fully serviceable shocks: front and rear units can be rebuilt

Specifications

Who This Is For and Isn't

This system suits 2015–2020 Ford F-150 4WD owners who want a bolt-on lift of 2–2.63" with a meaningful improvement in off-road damping and wheel travel, and who plan to run aftermarket wheels with lower offset or less backspace than the factory fitment. ICON specifies 17x8.5" with 5.00" backspace, 18x9" with 5.25" backspace, or 20x9" with 5.625" backspace as compatible aftermarket wheel sizes.

This system does not fit two-wheel-drive F-150 models, and it is not compatible with all available OEM wheel and tire combinations. Aftermarket wheels with lower offset are required for clearance. Power Stroke diesel-equipped trucks will see a reduced lift range of 1.5–2.13". The included rear shocks support 0–1" of rear lift over stock on most models; builds requiring more rear lift will need additional components. California residents: this product contains chemicals known to the State of California to cause cancer, birth anomalies, or other reproductive harm (Proposition 65).

Common Questions

Will this system fit my two-wheel-drive F-150?

The ICON Stage 4 system with billet UCA (K93084) is engineered exclusively for 2015–2020 Ford F-150 4WD models. Two-wheel-drive F-150 trucks are not a compatible application for this system.

How much lift will a Power Stroke diesel F-150 see?

On Power Stroke diesel-equipped 2015–2020 F-150 4WD trucks, the front coilovers in this Stage 4 system provide a lift range of 1.5–2.13" over stock rather than the 2–2.63" range available on gasoline-engine models, due to differences in front-end weight.

Do I need to cut or weld anything during installation?

The ICON Stage 4 system is a bolt-on suspension upgrade. No cutting or welding is required for installation on compatible 2015–2020 Ford F-150 4WD trucks. An installation guide is available from ICON Vehicle Dynamics.

Can I keep my factory wheels with this lift?

Not all OEM wheel and tire combinations are compatible with this Stage 4 system. ICON recommends aftermarket wheels with lower offset or less backspace than the factory fitment; compatible sizes include 17x8.5" at 5.00" backspace, 18x9" at 5.25" backspace, and 20x9" at 5.625" backspace. Larger tires than 33x11.50" may require fender trimming.

What components are included in this system?

The ICON Stage 4 system (K93084) includes a 2015–2020 F-150 4WD 2.5" remote reservoir front coilover kit (91811, qty 1), a billet aluminum upper control arm kit with Delta Joint (98505DJ, qty 1), and a 2.5 Aluminum Series piggyback rear shock pair (97720P, qty 1). The system ships in multiple boxes.

Are the shocks rebuildable?

Yes. Both the front remote reservoir coilovers and the rear piggyback shocks in this Stage 4 system are fully serviceable, meaning they can be rebuilt rather than replaced as a unit when service is eventually needed.