ReadyLIFT Suspension now offers its first 4" Coil Spring Lift Kit for 2017-2022 Ford Super Duty F250/F-350 4WD Power Stroke ® trucks equipped with new Tubular Radius Arms. This kit, designated as 49-27421, comprises front and rear Falcon 1.1 Monotube series performance shocks, a front track bar relocation bracket, tubular radius arms, and rear fabricated blocks. It provides an excellent solution for lifting F250/F-350 Super Duty trucks to accommodate larger tires, with the coil spring system enabling increased tire sizes and widths while enhancing ground clearance. This lift height strikes the ideal balance for Super Duty driving dynamics and maximum tire size while retaining everyday practicality.

The newly designed Radius Arms address suspension geometry correction for lifted models. These heavy-duty radius arms are engineered to withstand the rigors expected from Super Duty trucks and surpass factory radius arms with added support gussets. Their inward formation allows for increased tire clearance and the installation of oversized tires, all through a direct bolt-on design that ensures quick and easy installation. This optimal lift height accommodates tires up to 37" in height, delivering an exceptional ride and handling performance.

The key components for improving your ride include specially engineered coil springs, Falcon shocks, and track bar relocation. This combination transcends a mere lift kit, offering both enhanced performance and ride quality on and off-road. The ReadyLIFT 4" Coil Spring lift kit for 2017-2022 Ford Super Duty trucks also includes model-specific brake line extension brackets, proven bump-stop extension brackets, and new front sway bar frame mount extension brackets to maintain the factory sway bar's correct position. If you seek a rugged appearance and a smooth yet controlled ride, the new Super Duty 4" Coil Spring Suspension Kit System is your answer.

Features

• Fits 2017-2022 Ford Super Duty Power Stroke 4WD
• 4" coil spring lift kit
• (4) Monotube Falcon 1.1 shocks included
• Eyecatching HD tubular radius arms for improved caster angle
• Bolton installation, no structural modifications required
• Allows for up to 37" tall tires on 9" wide wheels with +18 off-set
• Designed for diesel trucks with rear singlewheel only
• Not recommended for 2WD or gas trucks
• May result in slightly lower ride height for 2017-2019 models
• Not validated for fitment and drivability on single cab configurations by ReadyLIFT

Refer to the tire fitment guide along with the year make model data. Tire fitments shown are for Maximum size and based on a no rub or no modifications required fitment. ReadyLIFT & Recon Recovery is not responsible if the listed max sizes are exceeded. Due to differences in manufacturing, dimension and inflated measurements, tire and wheel combinations should be test fit prior to installation.

Fitment

• 2017-2022 Ford F-250 Super Duty (Diesel) — 4WD
  • Lift: 4" | Max Tire: 37" x 12.5" | Wheel Width: 9" | Backspacing: 5" | Offset: 0
• 2017-2022 Ford F-350 Super Duty (Diesel) — 4WD

Specifications

• Fitment: Direct Fitment
• Front or Rear: Front and Rear
• Front Lift Height: 4 Inches
• Front Lift Component: Coil Spring
• Front Shocks: Falcon 1.1 Monotube
• Rear Lift Height: 4 Inches
• Rear Lift Component: Block
• Rear Shocks: Falcon 1.1 Monotube
• Max Tire Size: 37 Inch
• Installation Time: 4 Hours
• Install Difficulty: Difficult Requires Professional Installation
• Country of Origin: US

Warranty

READYLIFT® “NO HASSLE” PRODUCT WARRANTY

This unique “no hassle” product warranty proves their commitment to the quality of every product that ReadyLIFT produces. ReadyLIFT product warranty only extends to the Original Purchaser of any ReadyLIFT product. If it breaks, they'll give you a new part.

Any ReadyLIFT products containing missing or defective components will be covered under warranty by ReadyLIFT. Please contact Recon Recovery to initiate a warranty claim. In the event of a defective product, ReadyLIFT may request a return of the defective product (at ReadyLIFT expense) so the quality team can analyze the nature of the defect. Returning defective product will not delay the replacement part delivery.

ReadyLIFT leveling kit, block kits and lift kit products are NOT intended for off-road abuse. Any abuse or damage as a result of off-road use voids the warranty of the ReadyLIFT product. Exception: ReadyLIFT Jeep SST and Terrain Flex Lift Kits are designed for normal off-road use to complement the Jeep vehicle's off-road capability. All Jeep Lift Kit products are covered under warranty when used in recreational off-road environments.

Wearable components including, but not limited to, shocks, ball joints, heim joints, bushings, and steering extensions, are covered for up to 1-year. Labor, installation, surcharges or any other applicable fees from the original purchase are non-refundable. ReadyLIFT is not responsible for any consequential damage to vehicles.

WARNING: This product can expose you to chemicals including Di(2-ethylhexyl)phthalate (DEHP), which is known to the State of California to cause cancer, and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov/product.