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BDS SuspensionPart # BDS1226FPE

BDS Suspension 4 Inch Lift Kit w/ Radius Arms Ford F450 Super Duty (23-26) 4WD

Regular price $5,145.69
Regular price B2B price $5,145.69
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  • Front lift 4"
  • Lift 4-5.5"
  • Max tire 37 x 12.5
  • Rear lift 3.5"
  • Shocks included
Read the important notes before ordering

Questions about fitment? Live chat or call 866-235-4715

Shock Option

Complete your build

Optional add-ons

Traction Bars

  • SKU BDS2312Details

Steering Stabilizers

  • SKU BDS2001FSDetails

Accessories

  • SKU BDS123303Details
Inventory: Call or Live Chat
  • Free shippingMost orders $500+
  • 30-day returnsSee policy
  • Warranty supportWe work with the maker
View full details

Questions about fitment?

Talk to a TRU specialist

We’ll help you verify fitment before you buy.
Veteran-owned · Austin, Texas · Mon–Fri 9:30a–11:00a & 1:00p–5:30p CT

Important notes before you order

  1. Fits diesel models only
  2. These kits are designed for the F-450 style front end . They do not work with the standard Ford Super Duty F-250/350 axle width.
  3. Vehicles with radius arm mounted ride height sensors will require BDS123303
  4. Larger tires on stock wheels are not recommended due to brake line clearance required. Use recommended specifications listed in tire and wheel fitment section.
  5. Installation requires a torque wrench capable of 405 ft-lbs.
  6. Recalibration of your vehicles Advanced Driver Assistance System (ADAS) cameras, radars, light detection and ranging (LiDAR), and other sensors may be necessary by your local dealership or ADAS service center. This will ensure proper functionality of the vehicle features such as lane keeping, lane departure, parking assistance, blind-spot detection, adaptive cruise control systems, and other functions as they did prior to installation. Please connect with your local dealership or ADAS service center. Similar to a wheel alignment, all charges and expenses that may occur from dealership calibrations and adjustments are the sole responsibility of the vehicle owner.

TRU specialist notes

From the Trucks R Us fitment and install team, beyond the manufacturer's information.

  • Plan for a professional wheel alignment after installing any lift or leveling kit.
  • Going to bigger tires as well? Speedometer recalibration may be needed, and some tire and wheel combinations need trimming. Check the recommended wheels and tires, or ask us before you order.

Specifications

BrandBDS Suspension
Part numberBDS1226FPE
UPC / GTIN840416441505
Front Lift Height4"
Front Lift MethodCoil Spring
Lift Height4-5.5"
Max Tire Size37 x 12.5
Rear Lift Height3.5"
Rear Lift MethodBlock
Shocks IncludedYes

What's in the box

QtyPartDescription
1BDS123263Radius Arm Upgrade | Ford F250 / F350 Super Duty (23-26) & Ford F450 / F550 / F600 Super Duty (23-26) 4WD
1BDS033411Coil Springs | 4 Inch Lift | Ford F250/F350 Super Duty (05-26) 4WD | Diesel
1FOX88326097FOX 2.5 Remote Reservoir Front Shocks - DSC | 2-3.5 Inch Lift | Performance Elite Series | Ford F250/F350 Super Duty (17-26) 4WD
1FOX88326098FOX 2.5 Remote Reservoir Rear Shocks - DSC | 2-3.5 Inch Lift | Performance Elite Series | Ford F250/F350 Super Duty (17-26) 4WD
1BDS123808Rear Sway Bar Link Kit | Fits 6-8 Inch Lift | Ford F250 / F350 Super Duty (17-26) 4WD

Features

  • BDS Forged pitman arm to maximize steering radius at 4" of lift.
  • BDS Radius arms are made from heavy duty DOM steel.
  • BDS Radius arms restore proper caster angle, axle alignment, and suspension geometry, which helps maintain predictable steering, stable handling, and prevents wander or tire wear.
  • Rather than rigid joints, the kit uses OE-style rubber bushings at the frame mounts. These bushings isolate noise and vibration , provide a smoother, quieter ride, and require no ongoing greasing or maintenance
  • Choice of Fox shocks ranging from 2.0 to 2.5 Performance Elite.

Fitment

YearsVehicle
2023-2027Ford F-450 Super Duty 4 X 4

Use the fit check above with your truck selected, or ask a specialist if your trim isn't listed.

Recommended wheels & tires

  • 37 x 12.5 with 18 x 9 and in. Backspace
  • 37 x 12.5 with 20 x 10 and in. Backspace

Overview

Give your 2023–2026 Ford F-450 the lift it deserves with the BDS 4" Radius Arm Lift Kit, an ideal choice for drivers who want strength, simplicity, and outstanding everyday performance. While 4-link systems offer excellent articulation and fine-tuned geometry, a radius-arm setup shines when it comes to durability, straightforward design, and long-term reliability, qualities especially valued on heavy-duty trucks like the F-450. The heavy-duty radius arms from BDS are built to handle serious workload demands while maintaining predictable road manners, confident steering feel, and excellent stability under towing and hauling. This kit pairs perfectly with your choice of shocks: the proven BDS NX2 shocks, the FOX 2.0 Performance Series for a ride and handling upgrade, or the top-tier FOX 2.5 Performance Elite with DSC (Dual Speed Compression) adjusters for fully tunable control. And for those seeking even higher performance, the system can be optioned with front FOX 2.5 Performance Elite coilovers to deliver maximum responsiveness and comfort. Rugged, dependable, and easier on the budget, this BDS Radius Arm Lift Kit is the smart choice for drivers who want reliable performance without overcomplicating their suspension.

HD Radius Arms

In place of the factory stamped steel radius arms BDS supplies a pair of high-strength tubular radius arms. These arms mount into the factory location and offer caster adjustment for a wide range of lift heights along with an OE-style rubber bushing at the frame mount for smooth, quiet, service-free operation.

FOX Performance Elite Coil-Over

FOX 2.5 Performance Elite shocks offer next level performance for on-road comfort and off-road comfort capability. Tuned and ready to install right out of the box, these bolt-on 2.5-inch diameter shocks are built for abuse and packed with race-proven technology. They include a remote reservoir for additional fluid capacity to keep your shocks running cool so you can push the limits in the rough terrain. The DSC adjuster adds remarkable versatility and precise tuning with a simple twist of either two adjuster knobs, offering 10 separate low-speed and 12 high-speed compression levels, with a black anodized aluminum reservoir to increase cooling efficiency.

Steering Correction

To optimize steering geometry once lifted, a forged drop pitman arm is used to minimize the steering angle and pair it with a heavy duty track bar drop bracket to keep them in phase through suspension travel while recentering the front axle.

Questions

Will this fit my truck?

Select your truck at the top of the page and the fit check will confirm it. If your exact trim is not listed, call 866-235-4715 or live chat and a fitment specialist will check it before you order.

Do you help with installation?

Yes. Our technical team helps you or your shop with installation and troubleshooting after delivery, on top of the manufacturer’s support.

What if the part has a problem?

We work the warranty claim with the manufacturer on your behalf, within the manufacturer’s warranty policy.

Can I return it?

Most items can be returned within 30 days. See our return policy for details.

Do I need an alignment after installing?

Yes. Any lift or leveling kit changes suspension geometry, so get a professional alignment after installation.

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