• Fabtech FTS22321

    Fabtech 05-20 Ford F250/350 / 08-20 Ford F450/550 4WD 4/6/8in Lift Radius Arm System - FTS22321

    Fabtech fts22321 | 05-20 Ford F250/350 / 08-20 Ford F450/550 4WD 4/6/8in Lift Radius Arm System; 2005-2020
    Fabtech fts22321 | 05-20 Ford F250/350 / 08-20 Ford F450/550 4WD 4/6/8in Lift Radius Arm System; 2005-2020 Alternate Image 1
    Fabtech fts22321 | 05-20 Ford F250/350 / 08-20 Ford F450/550 4WD 4/6/8in Lift Radius Arm System; 2005-2020 Alternate Image 2
    Fabtech fts22321 | 05-20 Ford F250/350 / 08-20 Ford F450/550 4WD 4/6/8in Lift Radius Arm System; 2005-2020 Alternate Image 3
    Fabtech fts22321 | 05-20 Ford F250/350 / 08-20 Ford F450/550 4WD 4/6/8in Lift Radius Arm System; 2005-2020 Alternate Image 4
    Fabtech fts22321 | 05-20 Ford F250/350 / 08-20 Ford F450/550 4WD 4/6/8in Lift Radius Arm System; 2005-2020 Alternate Image 5
    Fabtech fts22321 | 05-20 Ford F250/350 / 08-20 Ford F450/550 4WD 4/6/8in Lift Radius Arm System; 2005-2020 Alternate Image 6
    Fabtech fts22321 | 05-20 Ford F250/350 / 08-20 Ford F450/550 4WD 4/6/8in Lift Radius Arm System; 2005-2020 Alternate Image 7

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Product Description

SKU: fts22321

Fabtech fts22321 - Fabtech 05-20 Ford F250/350 / 08-20 Ford F450/550 4WD 4/6/8in Lift Radius Arm System; 2005-2020.

2005-20 Ford F250/F350 4WD. 2008-19 Ford F450/F550 4WD. Fabtech's legendary Radius Arms are the perfect upgrade to the Ford Super Duty front suspension for lifted applications. The heavy duty tubular construction adds strength with a race component style to the vehicle for aggressive offroad use. These Super Duty Radius Arms directly replace the factory arms for use with lifted 4 to 8 suspensions. The arms have an additional 1 degree of caster built into the arms and with the easy adjustment alignment cams gives a total of 2 degrees more caster than stock. A big benefit for taller 6 and 8 lifted vehicles to improve highway tracking. The upper and lower tubes of the arms are constructed with 1.75 OD x .120 wall DOM tubing and are fully welded closed to prevent corrosion. Spanning between the tubes is a dimple die side plate that adds rigidity to the arm for strength with minimal weight gain. Radius Arms are offset and positioned inboard compared to the stock arms to allow full steering lock with a 13.50 wide tire on a 5 backspace wheel. The Fabtech Super Duty Radius Arms are an open design so that powdercoat can cover the entire arm. This design is superior in coating coverage compared to boxed arms that are stitch welded and have gaps that allow moisture to get and cause rust. Fabtech's Radius Arms have been proven for over 15 years in consumer, commercial and military applications. There are no better Radius Arms for your Super Duty. Features: Constructed with 1.75 OD x .120 wall DOM tubing. Directly replace factory arms on lifted vehicles. Additional caster to improve tracking.

Our patented Radius Arms feature a full tubular structure strengthened by dimple die side plates, with an adjustable alignment cam at the axle to allow caster adjustment. Front spring lift options includes 6 replacement Coil Springs. Completing this system is a Trac Bar relocation bracket, Pitman Arm, Sway Bar drops, and a rear Block & U-bolt kit.

Radius Arm Lift System; 1.75 OD x .120 in. Wall DOM Tubing; Fits 4 in./6 in. And 8 in. Suspension System;

Fabtech 05-20 Ford F250/350 / 08-19 Ford F450/550 4WD 4/6/8in Lift Radius Arm System



Radius Arm Lift System


Suspension Lift Kit


Fabtech Warranty Policy

Fabtech provides a Limited Lifetime Warranty to the original retail purchaser who owns the vehicle, on which the product was originally installed, for defects in workmanship and materials.

The Limited Lifetime Warranty excludes the following Fabtech items; bushings, bump stops, ball joints, uniballs, tie rod ends, limiting straps, cross shafts, heim joints and driveshafts. These parts are subject to wear and are not considered defective when worn. They are warranted for 60 days from the date of purchase for defects in workmanship.

Dirt Logic and Performance Coilover take apart shocks are considered a serviceable shock with a one year warranty on leakage only. Service seal kits are available separately for future maintenance. All other shocks are covered under our Limited Lifetime Warranty.

Fabtech does not warrant any product for finish, alterations, modifications and/or installation contrary to Fabtech’s instructions. Alterations to the finish of the parts including but not limited to painting, powder coating, plating and/or welding will void all warranties. Some finish damage may occur to parts during shipping, which is considered normal and is not covered under warranty.

Fabtech products are not designed nor intended to be installed on vehicles used in race applications or for racing purposes or for similar activities. (A “RACE” is defined as any contest between two or more vehicles, or any contest of one or more vehicle against the clock, whether or not such contest is for a prize). This warranty does not include coverage for police or taxi vehicles, race vehicles, or vehicles used for government or commercial purposes. Also excluded from this warranty are sales outside of the United States of America.

Installation of most suspension products will raise the center of gravity of the vehicle and will cause the vehicle to handle differently than stock. It may increase the vehicle’s susceptibility to a rollover, on road and off road, at all speeds. Extreme care should be taken to operate the vehicle safely at all times to prevent rollover or loss of control resulting in serious injury or death. Fabtech front end Desert Guards may impair the deployment or operation of vehicles equipped with supplemental restraining systems/air bag systems and should not be installed if the vehicle is equipped as so.

Fabtech makes every effort to ensure suspension product compatibility with all vehicles listed on the website, but due to unknown auto manufacturer’s production changes and/or inconstancies by the auto manufacturer, Fabtech cannot be responsible for 100% compatibility, including the fitment of tire and wheel sizes listed. The Tire and Wheel sizes listed in Fabtech’s website are only a guideline for street driving with noted fender trimming. Fabtech is not responsible for damages to the vehicle’s body or tires. Fabtech is not responsible for premature wear of factory components due to the installation of oversized tires and wheels.

Fabtech’s obligation under this warranty is limited to the repair or replacement, at Fabtech option, of the defective product only. All costs of removal, installation or re-installation, freight charges, incidental or consequential damages are expressly excluded from this warranty. Fabtech is not responsible for damages and/or warranty of other vehicle parts related or non related to the installed Fabtech product. This warranty is expressly in lieu of all other warranties expressed or implied. This warranty shall not apply to any product that has been subject to accident, negligence, alteration, abuse or misuse as determined by Fabtech.

Fabtech suspension components must be installed as a complete system including shocks as shown on our website. All warranties will become void if Fabtech parts are combined and/or substituted with other aftermarket suspension products. Combination and/or substitution of other aftermarket suspension parts may cause premature wear and/or product failure resulting in an accident causing injury or death. Fabtech does not warrant products not manufactured by Fabtech.

Depending on the condition of the factory suspension components retained after the installation of a Fabtech suspension not all vehicles may have the same ride stance front to rear as described in the website. The blue color of suspension components shown in all Fabtech photographs are for display purposes only. Majority of all Fabtech components will be black specifically where noted with part numbers ending in BK.

Installation of Fabtech product may void the vehicles factory warranty; it is the consumer’s responsibility to check with their local vehicle’s dealer for warranty disposition before the installation of the product. Some state laws may prohibit modification of suspension to a vehicle in whole or in part. It is the responsibility of the installer and consumer to consult local laws prior to the installation of any Fabtech suspension product to comply with such written laws.

About Fabtech

History and information about Fabtech and their products.

We know that the first thing that comes to mind when you think of your car’s performance is horsepower but think again because regardless of how much horsepower your car has it cannot perform if you can’t control it. And that is where your car’s suspension system comes into play and since your are considering a new suspension system or component why not consider the best. And touting 25 years of experience certainly speaks to success in any given field but especially in a competitive field like aftermarket performance parts and FABTECH MOTORSPORTS has just that.

FABTECH MOTORSPORTS has earned its place in the industry because they recognize the importance of both equipment and experienced professionals as necessary elements for superior product development and they have never wavered in their commitment to this end. Starting with their extensive research, design technology and ending with rigorous testing they have been able to provide you with products that break new ground in the suspension arena.

FABTECH accomplishes its goal of offering you a product that is trouble free by staying ahead of its competition when it comes to research, design and testing and they have recognized the need to incorporate today’s vehicle’s electronics and sensors into the suspension design so that everything will operate smoothly. To assure you of the best possible product they use in-field testing and multiple vehicle fit tests so that all possible problems are addressed before the product is released. To further insure product quality all of FABTECH’s components are built in house at their 100,000 square foot facility in Chino, California.

FABTECH designs and manufactures suspension systems for both on and off road applications and for off road applications the system is designed to afford increased ride height and enhanced performance and furthermore, each suspension system is unique to the vehicle. Everything from a complete suspension system to individual components is designed and manufactured with the same impressive precision and dedication to detail.

As one example of excellence in product take a look at the Dirt Logic Shocks from FABTECH with their high grade 304 stainless steel bodies that are sure to resist corrosion. Or the Stealth Monotube Shock that features Nitrocarburized piston rods notably superior to chromed rods to assure you of not only durability but resistance to corrosion. The FABTECH Performance Shocks are uniquely constructed so that they work in conjunction with the FABTECH suspension system to provide you with outstanding ride control, primo dampening capabilities and reduced shock fade at high speeds. And for you off road enthusiasts and those of you with oversized tires take a look at FABTECH’s Uniball Upper Control Arms for increased strength in the front suspension with a design that assures you of longevity in hardwearing conditions.

Whether you are in the market for a complete suspension system. shocks, upper control arms, dirt logic shocks, stealth shocks, performance shocks, or some accessory you can be sure that FABTECH designed and manufactured each with the same impressive standards affording you a top of the line product that will satisfy even the most discerning customer.


California Residents: Prop 65 WARNING: This product MAY contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling. For more information, visit www.P65Warnings.ca.gov

California Residents: TIRE WARNING: LMPerformance will not ship Tires to California.

Legal: Some or all of these parts may not comply with Federal, State, Province, and/or Local laws, ordinances, and regulations. Buyer takes all responsibility to ensure that any modifications or upgrades that have done conform to all applicable laws and regulations for road use, especially pertaining to safety and emissions. LMPerformance is not responsible for buyer not complying with Federal, State, Province, and/or Local laws, ordinances, and regulations. This policy shall be in force for all past, current, and future purchases from LMPerformance, Inc. LMPerformance will not ship ANY non-CARB compliant products to California where California requires products to be CARB certified such as Catalytic Converters and Induction Kits.

FREE SHIPPING: Please note FREE Shipping refers to shipping within the contiguous continental US only. All other locations extra. Some items that require Truck Freight Delivery will require a Truck Freight surcharge. This surcharge is still a discounted shipping amount that is lower then the actual truck freight shipping charge that is charged to LMP. LMP will try to still give the lowest price possible for truck freight items.

IMAGES: Images may be a representation and may not reflect the actual product. Examples would be SPEC stage 3 clutch kits which all use the same photo.

TYPOS: LMPerformance tries to present the best most accurate information on our website. Sometimes we get mistakes in product information sent from vendors such as typos. We can not be responsible for these typos, if you see something that does not look right please let us know before ordering so we can double check for you first. LMPerformance will not pay for typos in any way, monetarily or otherwise.

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