The ICON Vehicle Dynamics Stage 4 Suspension System for the 2021-2023 Ford Bronco features our precision-manufactured, custom valved remote reservoir coilover shocks to yield the maximum travel possible along with superior ride quality and suspension performance both on and off-road. These coilovers also allow for the adjustment of ride height to yield 3-4” of front lift and 2-3” of rear lift over stock 4-door Broncos without the Sasquatch Package. To provide for sustained shock performance at speed through rough terrain, Stage 4 adds remote reservoirs to the ICON Coilovers. Remote reservoirs greatly increase shock oil volume and heat dissipation surface area to resist overheating and cavitation under hard use, which can lead to damper fade.
To accommodate the increased travel and lift height afforded by the ICON Coilovers, this Stage 4 kit comes with Billet Aluminum Upper Control Arms which provide on-vehicle caster and camber adjustability and feature our patented Delta Joint PRO, which allows for up to 90-desgrees freedom of movement. The rear coilovers are mounted in a shaft up orientation and feature unique ICON engineered progressive dual rate coil springs that provide extra weight capacity for those who frequently load out their Broncos with extra gear and equipment while maintaining excellent on- and off-road performance characteristics.
This suspension system is designed to provide up to 11.5" of front suspension travel and 14" of rear suspension travel when used with 35X12.50 tires. It may be safely used with 37" and larger tires if using the optional up-travel limiters (sold separately). The factory crash bars on non-Sasquatch equipped Broncos must be removed to clear 35" and larger tires, but ICON now offers a replacement High Clearance Crash Bar set for those who would like to run larger tires and retain the functionality of the crash bars.
TECH NOTE: ICON Heavy Rate Rear Coil Springs are optimized for increased rear ride height on Broncos with additional weight added to the rear. ICON Heavy Rate Rear Coil Springs will result in a slight positive rake when the Bronco is unloaded. For near stock weight Broncos, consider part number K40004.
ICON suspension systems lift your Ford Bronco while improving ride quality and performance. With endless hours spent testing and tuning our suspension components and shocks, you’ll have the best suspension solution on the market.
Recommended Aftermarket Tires: 35" x 12.50" (Recommend high clearance crash bars part number 42000, 37" tires require coilover bump stop spacers along with trimming and modifications)
TECH NOTE: Fitment testing done with ICON & OE steering components. Due to tight clearances to front coilovers, certain aftermarket steering components may not be compatible.
Adjustable coilovers yield up to 3-4" of front lift height and 2-3” of rear lift height over stock 4-door Broncos without the Sasquatch package
APPLICATION NOTE #186: Rear reservoir brackets may interfere with some aftermarket step or rock slider mounts. Modifications may be required.
Vehicle specific tuned remote reservoir front and rear coilover shocks for superior damping and vehicle control, even under hard use
ICON engineered coil springs featuring a unique dual rate rear coil design with increased spring rates for heavier equipped Broncos
APPLICATION NOTE #138: Recommend High Clearance Crash Bars Part #42000 On Non-Sasquatch Equipped Vehicles When Running 35" Tires
Billet aluminum UCAs for added strength, durability, and on-vehicle caster/camber adjustment for optimum drivability
UCAs feature the patented (U.S. Pat. 10,731,700) Delta Joint Pro with 90 degrees of total articulation.
APPLICATION NOTE #139: When Running 37" Tires Crash Bar Removal May Be Required But Is Not Recommended
APPLICATION NOTE #132: When Running 37" Tires Use Up Travel Limiters Part #611075 In The Front
APPLICATION NOTE #133: When Running 37" Tires Use Up Travel Limiters Part #611074 For The Rear
Recommended Aftermarket Wheels: ICON Alloys - 17x8.5" w/ 4.75” Backspace / 0mm Offset
APPLICATION NOTE #135: Lift Heights & App Notes Based Non-Sasquatch Equipped Vehicles
Recommended Aftermarket Wheels: ICON Alloys - 18x9" with 5" Backspace / 0mm Offset
Recommended Aftermarket Wheels: ICON Alloys - 20x9" with 5" Backspace / 0mm Offset
Corrosion resistant CAD plated coilover shock bodies with 7/8” diameter shafts
100% Bolt-on system - no drilling, cutting, or welding necessary for install
21-23 BRONCO NON-SASQ 3-4" LIFT STAGE 4 SUSPENSION SYSTEM BILLET HEAVY RATE
APPLICATION NOTE #137: When Running Factory Lower Links Use Part #611072
PTFE lined spherical bearings and application specific mounting hardware
APPLICATION NOTE #66: 2 Door Models Will Sit Taller Than 4 Door Models.
Up to 11.5" front / 14” rear wheel travel with 35” tire fitment
Improved suspension performance and ride quality over stock
6061 Aircraft grade aluminum CNC machined components
APPLICATION NOTE #150: Shocks Are Fully Serviceable
High strength alloy CNC machined lower bar pins
TECH NOTE: Not compatible with Bronco Raptor
OEM Wheels & Tires Fitment: No
Suspension Lift Kit
SUSPENSION SYSTEM
K40004X
