FABTEGH FTS22374 4 inch Radius Arm System Installation Guide

: September 13, 2024
: FABTEGH

Table of Contents

Radius Arm System
– TOOL LIST –
– PRE-INSTALLATION NOTES –
– INSTRUCTIONS –
– Product Warranty and Warnings –
Read User Manual Online (PDF format)
Download This Manual (PDF format)

INSTALLATION INSTRUCTIONS
2023-2024 FORD F250/350 4WD
4” RADIUS ARM SYSTEM’
FTS22374

Radius Arm System

K2406	4” RADIUS ARM SYSTEM W/PERF SHOCKS
1	FTS22207
1	FTS22214
1	FTS22374
2	FTS7236
2	FTS7266
K2406M	4” RADIUS ARM SYSTEM W/ STEALTH

SHOCKS
---|---
1| FTS22207| 4” COIL BOX (DIESEL)
1| FTS22214| 4” REAR BOX KIT
1| FTS22374| 4” RADIUS ARM BOX
2| FTS6236| STEALTH MONOTUBE SHOCK (FRONT)
2| FTS6063| STEALTH MONOTUBE SHOCK (REAR)
K2406DL| 4” RADIUS ARM SYSTEM W/ DLSS SHOCKS
---|---
1| FTS22207| 4” COIL BOX (DIESEL)
1| FTS22214| 4” REAR BOX KIT
1| FTS22374| 4” RADIUS ARM BOX
2| FTS810962| 2.25 DIRT LOGIC SS N/R (FRONT)
2| FTS810052| 2.25 DIRT LOGIC SS N/R (REAR)
K2407DL| 4” RADIUS ARM SYSTEM W/ DLSS RESI SHOCKS
---|---
1| FTS22207| 4” COIL BOX (DIESEL)
1| FTS22214| 4” REAR BOX KIT
1| FTS22374| 4” RADIUS ARM BOX
2| FTS800962| 2.25 DIRT LOGIC SS RESI (FRONT)
2| FTS810052| 2.25 DIRT LOGIC SS N/R (REAR)
K2408DL| 4” RADIUS ARM SYSTEM W/ DLSS 4.0 C/O
---|---
1| FTS22374| 4”RADIUS ARM BOX
1| FTS22309| 4” REAR BOX KIT
1| FTS835242D| 4.0 DLSS C/O RESI (DRIVER)
1| FTS835242P| 4.0 DLSS C/O RESI (PASS)
2| FTS810052| 2.25 DIRT LOGIC SS N/R (REAR)
FTS22207 4” ****FORD SD FRONT COILS (DIESEL)

2| FT30648| 4” FRONT COIL SPRING (DIESEL)
FTS22374| 4” RADIUS ARM SYSTEM
---|---
1| FT30122| PITMAN ARM
2| FT30653| 4” BUMP STOP EXT
1| FT30668| HARDWARE KIT
1| FT30672| STEERING STABILIZER BRACKET
1| FT30686| STEERING STABILIZER CLEVIS MOUNT
1| FT30956| TRAC BAR DROP BRACKET
1| FT31086| RADIUS ARM (DRIVER)
1| FT31087| RADIUS ARM (PASS)
1| FT31094| HARDWARE SUBASSEMBLY
1| FT3400-112P| SWAY BAR DROP (DRIVER)
1| FT3400-112D| SWAY BAR DROP (PASSENGER)
1| FT31135| BRAKELINE BRACKET
FTS22214| 4” REAR BOX KIT
---|---
4| FT728U| UBOLT RD 5/8-18 X 16.50 X 3.50
2| FTBK41| 4” BLOCK W/ BUMPSTOP
1| FT58H| 5/8” UBOLT HARDWARE KIT
FTS22309| 4” REAR BOX KIT – COILOVER KIT
---|---
4| FT742U| UBOLT RD 5/8-18 X 18.00 X 3.50
2| FTBK53| 5” REAR BLOCK
1| FT58H| 5/8” UBOLT HARDWARE KIT
2| FT30891| BUMP STOP EXTENSION
FT31094| HARDWARE SUBASSEMBLY
---|---
4| FT1006| BUSHING
2| FT102| SLEEVE 1.000 X .732 X 3.280
1| FT22374i| INSTRUCTIONS
1| FT292| ALIGNMENT CAM KIT
1| FT30258| SECTOR SHAFT NUT
1| FT30604| SPACER
2| FT30659| BRAKE LINE TAB
2| FT50290| BUMP STOP NUT TAB
1| FTAS12| STICKER FT BLUE 10X4 DIE CUT
1| FTAS16| DRIVER WARNING DECAL
1| FTREGCARD| REGISTRATION CARD
1| FTLUBE| URETHANE LUBE PACKET
1| 37161001081| 3/8-16 X 1” HEX BOLT
2| 37000005081| 3/8” SAE WASHER
1| 37160003052| 3/8-16 NYLOCK NUT
FT30668 – HARDWARE KIT| LOCATION
---|---
8| 7/16 SAE WASHER G8 ZINC| SWAY BAR
4| 7/16-14 C-LOCK NUT ZINC|
4| 7/16-14 X 1 1/4 HEX HD|
2| 3/8-16 X 1” HEX BOLT| BRAKE LINE
4| 3/8” SAE WASHER|
2| 3/8-16 NYLOCK NUT|
2| 1/4 SAE WASHER|
1| 1/4-20 GR C CROWNLOCK NUT|
1| 1/4-20 X 3/4 HEX BOLT G5 ZINC|
2| 1/2-13 X 1-1/4 HEX BOLT| BUMP STOP
2| 1/2-13 X 1-1/2 HEX BOLT|
6| 1/2 SAE WASHER|
2| 1/2-13 C-LOCK NUT|
1| COTTER PIN|
1| M12-1.75 X 70MM HEX BOLT| STEERING STABILIZER
2| M12 WASHER|
1| M12-1.75 C-LOCK|
1| 9/16-12 NYLOCK NUT|
3| 9/16 SAE WASHER|
1| THREAD LOCKING COMPOUND 1 MIL|
1| HOSE CLAMP|

– TOOL LIST –

Required Tools (Not Included)

Basic Hand Tools
Assorted Metric and S.A.E sockets, and Allen wrenches
Torque Wrench
Die Grinder w/ Cutoff Wheel or Sawzall
1-1/4” Hole Saw
Basic Hand Tools
Floor Jack
Jack Stands
Drill

– PRE-INSTALLATION NOTES –

For technical assistance call: 909-597-7800 or e-mail: info@fabtechmotorsports.com
READ THIS BEFORE YOU BEGIN INSTALLATION –
Check all parts to the parts list above before beginning installation. If any parts are missing contact Fabtech at 909-597-7800 and a replacement part will be sent to you immediately.
Read all instructions thoroughly from start to finish before beginning the installation. If these instructions are not properly followed severe frame, driveline and / or suspension damage may occur.
Check your local city and state laws prior to the installation of this system for legality. Do not install if not legal in your area.
Prior to the installation of this suspension system perform a front end alignment and record. Do not install this system if the vehicle alignment is not within factory specifications. Check for frame and suspension damage prior to installation.
The installation of this suspension system should be performed by two professional mechanics.
This suspension must be installed with Fabtech shock absorbers.
Use the provided thread locking compound on all hardware.
WARNING- Installation of this system will alter the center of gravity of the vehicle and may increase roll over as compared to stock.
Vehicles that receive oversized tires should check ball joints, uniballs, tie rods ends, pitman arm and idler arm every 25005000 miles for wear and replace as needed.
Verify differential fluid is at manufactures recommended level prior to kit installation. Installation of the kit will reposition the differential and the fill plug hole may be in a different position. (For example, if the manufacture recommends 3 quarts of fluid, make sure the diff has 3 quarts of fluid). Check your specific manual for correct amount of fluid.

Recommend Tires and Wheels:

Use 38/12.50R17 tire – 17×9 w/ 4-3/4” BS Wheel w/minor trimming
Use 38/12.50R18 tire – 18×9 w/ 4-3/4” BS Wheel w/minor trimming
Use 38/12.50R20 tire – 20×9 w/ 5” BS Wheel w/minor trimming
Use 40/12.50R17 tire – 17×9 w/ 4-3/4” BS Wheel w/minor trimming
Use 40/12.50R18 tire – 18×9 w/ 4-3/4” BS Wheel w/minor trimming
Use 40/12.50R20 tire – 20×9 w/ 5” BS Wheel w/minor trimming

FOOTNOTES –

Non dually models only
Will not fit gas motors.
Does not fit vehicles equipped with Ford onboard scale system

– INSTRUCTIONS –

FRONT SUSPENSION

Disconnect the negative terminal on the battery. Jack up the front end of the truck and support the frame rails with jack stands. NEVER WORK UNDER AN UNSUPPORTED VEHICLE! Remove the front tires.
Disconnect the sway bar from the sway bar end links and frame. Remove sway bar. Save hardware. SEE FIGURE 1
Disconnect the brake line from the frame and axle on both driver and passenger sides. Save hardware. SEE FIGURES 2-3
Remove the front shocks and discard, save hardware.
Lower the front axle allowing the coil springs to come free of tension and remove the coil springs. EXERCISE EXTREME CAUTION WHEN WORKING WITH COIL SPRINGS UNDER LOAD!
Disconnect the factory steering stabilizer from the frame mount. Remove the steering stabilizer frame bracket. Discard the frame bracket. Save all hardware.
Remove the drag link from the pitman arm. Use care not to damage the threads on the drag link.
Disconnect the trac bar from the frame bracket. Remove the trac bar bracket from the frame, save the original hardware and discard the factory trac bar bracket.
Remove the factory pitman arm from the steering box using a large pitman arm puller. Discard hardware and arm.
Install FT30122 (Pitman Arm) using the supplied FT30258 (Sector shaft nut). Torque to 350 ft-lbs. NOTE: This is a one time only use nut. If remove, it must be discarded.
Locate FT30956 (Track Bar Bracket). Attach to the frame using the original hardware in the same position. Torque bolts to 120 ft-lbs. DO NOT ATTACH THE TRAC BAR TO THE FRAME BRACKET AT THIS TIME. SEE FIGURES 4-5 – Option 1 –
Working from both sides of the truck, locate and remove the factory front bump stops and save. Pull on the bump stop itself to free from the cup. Remove the factory mounting cup from the frame and discard the hardware.
Drill out the center hole on the factory cup to 1/2”. SEE FIGURES 6-7
Install FT30653 (Bump Stop Extension) onto the factory cup using the supplied 1/2” x 1-1/4” hardware and set aside. Torque to 127 ft-lbs. SEE FIGURE 8
Locate the factory bump stop mounting hole. Measure 3” straight up from the bottom of the frame. Mark and drill a 1-1/4” hole using a hole saw into the frame. SEE FIGURES 9-10
Drill out the factory bump stop mount hole to 1/2”. SEE FIGURE 11
Using FT50290 (Nut Tab) and 1/2 X 1-1/2” bolt and washer. Mount the new bump stop extension to the frame. Route the Nut tab through the 1-1/4” hole that was made in Step 11. Torque to 127 ft-lbs. SEE FIGURE 12 REPEAT BUMP STOP INSTALLATION ON PASSENGER SIDE
– Option 2 –
Working from both sides of the truck, remove the factory front bump stops. Pull on the bump stop itself to free from the cup. Remove the factory mounting cup from the frame. SEE FIGURE 13
Install the factory bumpstop cup to the new FT30653 (Bumpstop Extension) using provided 5/16” x 1-1/4” hardware and 10mm large OD washer. SEE FIGURE 14
Install the factory bolt through the 10mm large OD washer then install through FT30653 (Bump Stop Extension).
Install the new extension to the factory postion. Then, reinsert the foam bumpstop. SEE FIGURE 15
With the front axle still supported by the floor jack, remove the Driver side factory radius arm. Save the factory hardware.
Install FT1006 (Bushings) & FT102 (Sleeve) into the FT31086 (Driver Radius Arm) using the supplied Urethane grease.
Install the new radius arm using the factory hardware at the frame and upper axle mount. Use the supplied FT292 (Alignment cam kit bolt) at the lower axle location. Torque factory hardware to 222 ft-lbs and FT292 cam bolts to 287 ft-lbs. SEE FIGURES 16-17 • REPEAT STEPS 20-22 ON PASSENGER SIDE
• IF INSTALLING A COILOVER
CONVERSION KIT DO SO NOW AND SKIP TO STEP 25
Install FT30648 (Coil Spring Diesel) using the factory upper isolator. SEE FIGURE 18
Install the new front shocks FTS7236, FTS6236 or FTS810962 with the supplied bushing kits. Using the factory hardware. Due to vehicle variances the top of the lower shock mount may need to be sanded down to clear the shock body only if installing Stealth shocks. Torque the lower hardware to 111 ft-lbs and the upper to 46 ftlbs. SEE FIGURE ON LAST PAGE.
Reinstall the track bar to the new frame bracket. Torque to 400 ft-lbs. Install the drag link to the new Fabtech pitman arm using the factory hardware and the new supplied cotter pin. Torque to 70 ft-lbs. NOTE: The drag link will need to be rotated 180 degrees and installed from the bottom side of the pitman arm. SEE FIGURE 19
(DRIVER SIDE) Install FT30659 (Brake line bracket) to the frame using the factory hardware. Next, Bend the hard line so the factory bracket is 180 degrees from original location. Then, install FT30929 (Spacer) between the new
bracket and the factory bracket using the supplied 3/8” x 1-1/2” bolt,nut and washers. Torque hardware to 52 ftlbs. SEE FIGURES 20-21
(PASSENGER SIDE) Install FT30659 (Brake line bracket) to the factory brake line tab using the supplied 3/8” hardware (Use lower hole). Next, using the supplied rubber clamp and 1/4” hardware, attach the ABS line to the upper hole on the FT30659 bracket. Re attach to the frame using the factory hardware. Torque 3/8” & factory hardware to 52 ft-lbs. Torque 1/4” hardware to 14 ft-lbs. SEE FIGURE 22
Install FT30672 (steering stabilizer drop bracket) in the factory location using the factory hardware. Torque to 52 ft-lbs. SEE FIGURES 23-24
Install FT30686 (Stabilizer Clevis) on the factory steering stabilizer using the supplied M12 hardware. NOTE: Install FT30604 (spacer) like shown in the figure below. Install the stabilizer using the supplied 9/16” washer and nut to the drag link. Using the factory hardware install the tapered end into the new Fabtech bracket. Torque to 127 ft-lbs. SEE FIGURE 24
Install FT3400-112P (Driver) & FT3400-112D (Passenger) Sway bar drop brackets using the factory hardware.
Torque to 35 ft-lbs. Reinstall the front sway bar to the end links using the supplied 7/16” hardware torque hardware to 83 ft-lbs. Reconnect the sway bar to the endlinks.
Torque to 59 ft-lbs SEE FIGURE 25
Install the lower brake line bracket to the lower spring perch using the factory hardware. Torque to 29 ft-lbs.
Install the front tires and wheels. Torque lug nuts to wheel manufacturer’s specifications.
REAR SUSPENSION
(4” BLOCK) Remove the rear factory shocks, ubolts and blocks. Locate and install the 4’’ rear lift blocks (FTBK41) using the supplied u-bolts, nuts and washers. Align axle, lift blocks and springs and torque to U-Bolts to 170 ft-lbs.
(5” BLOCK) Remove the rear factory shocks, ubolts and blocks. Locate and install the 5’’ rear lift blocks (FTBK53) using the supplied u-bolts, nuts and washers. Align axle, lift blocks and springs and torque to U-Bolts to 170 ftlbs.
Remove the factory rear bumpstop assemblies from the frame. Save hardware. Remove the foam bump from the mount plate. Install the factory foam bumpstop to FT30891 (Bumpstop bracket) Torque to 40 ft-lbs. Then, install the assembly to the frame using the factory nuts.
Torque to 70 ft-lbs. SEE FIGURE 26
Install the new rear shocks FTS7266, FTS6063 or DL FTS810052 using the factory hardware, torque the upper mount 46 ft-lbs. and the lower mount to 66 ft-lbs.
Locate the breather hose on the rear axle tube. Detach the fitting from the tube and remove the factory brake line bracket. then install the new FT31135 (Brake Line Bracket) in its place. Install the factory bracket to the new Fabtech bracket using the supplied 3/8” hardware. Torque to 32 ft-lbs. SEE FIGURE 27
Install tires and wheels and torque lug nuts to wheel manufacturer’s specifications. Turn front tires left to right and check for appropriate tire clearance. Note – Some oversized tires may require trimming of the front bumper & valance.
Check front end alignment and set to factory specifications. Readjust headlights.
Recheck all bolts for proper torque.
Recheck brake hoses, ABS wires and suspension parts for proper tire clearance while turning tires fully left to right.
Check the fluid in the front and rear differential and fill if needed with factory specification differential oil. Note – some differentials may expel fluid after filling and driving. This can be normal in resetting the fluid level with the new position of the differential/s.
Install Driver Warning Decal. Complete product registration card and mail to Fabtech in order to receive future safety and technical bulletins on this suspension.

Vehicles that will receive oversized tires should check ball joints, uniballs and all steering components every 2500-5000 miles for wear and replace as required.
RE-TORQUE ALL NUTS, BOLTS AND LUGS AFTER 50 MILES AND PERIODICALLY THEREAFTER.
For technical assistance call: 909-597-7800

– Product Warranty and Warnings –

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, 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.
It is the responsibility of the distributor and/or the retailer to review all warranties and warnings of Fabtech products with the consumer prior to purchase.
Fabtech reserves the right to super cede, discontinue, change the design, finish, part number and/or application of parts when deemed necessary without written notice. Fabtech is not responsible for misprints or typographical errors within the website or price sheet. For the most recent Product Warranty and Warnings visit our website www.fabtechmotorsports.com

Instruction Sheet Part# – FT22374i 07/30/24
Fabtech Motorsports | 2213 Industrial Park Rd. Lancaster, SC 29720
Tech Line: 909-597-7800 | Web: www.fabtechmotorsports.com

Read User Manual Online (PDF format)

Read User Manual Online (PDF format) >>

Download This Manual (PDF format)

Download this manual >>