ReadyLIFT radius arm drop brackets with lower coil spacers and bolts, on white

ReadyLIFT Radius Arm Bracket Kit for 2005-2016 Ford F-250/F-350 Super Duty

$349.95
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Features

  • Radius arm drop brackets: The drop brackets lower the frame-side radius arm mount so your factory arms sit back at their stock angle on a leveled or mildly lifted truck. ReadyLIFT says this keeps correct OEM suspension geometry.
  • 1" billet lower coil spacers: The kit includes ReadyLIFT's 67-2551 1" billet spacers, which sit on the axle under the spring perch to add front height.
  • A step up from a 2.5" level: ReadyLIFT built it for trucks already running a 2.5" leveling kit or its 2.5" Mild Lift kit; the spacers and brackets together raise the lift. The parts come from ReadyLIFT's 3.5" series lift kits.
  • Crush sleeves and new hardware: The brackets go in with the crush sleeves and new hardware supplied in the kit. Your factory radius arms, coil springs and shocks are reused.
  • Made for 2005-2016 Super Duty 4WD: Built for 2005-2016 Ford F-250 and F-350 Super Duty 4WD trucks; the fitment table on this page lists each truck it fits.
  • About 3.5 hours, then align: ReadyLIFT estimates about 3.5 hours to install, not counting alignment and wheel and tire work. Plan on a wheel alignment and a headlamp check afterward.

Description & Fitment

ReadyLIFT's Radius Arm Bracket Kit, part 67-2550, is for 2005-2016 Ford F-250 and F-350 Super Duty 4WD trucks. It pairs radius arm drop brackets, which lower the frame-side radius arm mount, with 1" billet lower coil spring spacers that sit between the axle and the spring perch. Crush sleeves and new mounting hardware come in the kit; the factory coil springs, isolators, shocks and radius arms are reused. ReadyLIFT estimates about 3.5 hours to install, and a professional wheel alignment is required afterward.

Fitment & Compatibility

Ford
Years Model Bed Notes
2005-2016 F-250 Super Duty 4WD only
2005-2016 F-350 Super Duty 4WD only

Check your truck: Match your model year and model to the fitment table; on every row: 4WD only. Plan on a professional alignment and a headlamp re-aim after the install (ReadyLIFT guide).

Not for: 2WD trucks, the F-450 (not on our fitment list for this kit), and model years outside the fitment table.

About ReadyLIFT

READYLIFT.

ReadyLIFT Suspension started in 2006 with one goal: give truck and SUV owners more tire clearance and a better stance while keeping the ride and handling their vehicle had from the factory.

What began as a practical alternative to big lifts now spans front leveling kits, SST lift kits, big lift systems, rear block and spacer kits, upper control arms, track bars and Falcon shocks for popular trucks and SUVs. We are an authorized ReadyLIFT dealer.

Frequently Asked Questions

Will this fit my 2005-2016 Super Duty?

It fits 2005-2016 Ford F-250 and F-350 Super Duty 4WD trucks. 2WD trucks are not covered, and the F-450 is not on our fitment list for this kit. If you're unsure, send us your VIN and we'll check.

What comes in the kit?

Radius arm drop brackets with crush sleeves and new hardware, plus 1" billet lower coil spring spacers. Coil springs, shocks and radius arms are not included; your factory parts go back in.

Can I use it without a leveling kit?

ReadyLIFT designed it as an add-on for 2005-2016 Super Duty trucks already running a 2.5" leveling kit or ReadyLIFT's 2.5" Mild Lift kit. If your truck is at stock height, contact us before you order.

Does it replace my radius arms?

No. The drop brackets reposition your factory radius arms, which are reused. This kit does not include tubular arms or a cam bolt kit.

Will I need an alignment afterward?

Yes. ReadyLIFT's install guide calls for a wheel alignment and a headlamp check once the truck is back on the ground.

How long does it take to install?

ReadyLIFT estimates about 3.5 hours, give or take half an hour, not counting the alignment or wheel and tire work. ReadyLIFT's install guide is on this page.

Installation

Install time About 3.5 hours (give or take 0.5), excluding alignment and wheel/tire mounting
Recommended installationProfessional
What's involvedFront springs come out for perch spacers, the radius arms drop into new frame brackets and the springs go back
AfterwardProfessional wheel alignment requiredre-check headlamp aim and re-torque within 50 miles (ReadyLIFT guide)

Here's the short version. Follow ReadyLIFT's install guide (below) for your truck's exact steps, hardware and torque settings.

  1. Unload the front springs. Support the front on jack stands rated for at least 3 tons and remove the wheels. Disconnect the lower sway bar hardware and the brake line support bracket, support the axle with a floor jack, unbolt the lower shocks, then carefully lower the axle and remove the coil springs.
  2. Fit the coil spacers. Remove the bolt from the middle of each spring perch, set the billet spacer on the axle under the perch, and secure it with the supplied hardware torqued to spec.
  3. Move the vacuum line. Unclip the vacuum line from the brake bracket, bend the tab 180 degrees so the line sits behind the bracket, then reconnect the line and clip and reattach the bracket.
  4. Drop the radius arms. Support each radius arm and remove its frame bolts, lower the arm enough to slide the drop bracket into the frame, line it up with the frame holes and raise the arm into it. Fit the crush sleeves and new hardware, tighten them, and leave the factory radius arm bolt loose for now.
  5. Reassemble. Reinstall the factory coil springs with their rubber isolators, clocked correctly on the perch. Raise the axle to reconnect the lower shocks and sway bar end links, tighten to factory spec and refit the wheels.
  6. Finish on the ground. With the truck on the ground, torque the factory radius arm bolt to spec, recheck everything, test drive, re-torque within 50 miles, then have a professional alignment done and re-aim the headlamps.

Stuck on a step? Ask our install experts

What's included
  • Radius arm drop brackets
  • Crush sleeves and new mounting hardware
  • 1" billet lower coil spring spacers with hardware

Specifications

BrandReadyLIFT
Part Number67-2550
Product TypeRadius arm drop brackets with 1" lower coil spring spacers
In the BoxRadius arm drop brackets, crush sleeves and hardware; 1" billet lower coil spring spacers with hardware

Warranty, shipping & returns

  • Warranty

    ReadyLIFT backs its products with its "No Hassle" product warranty, which its install guides call a limited lifetime warranty. In ReadyLIFT's words: "If it breaks, we will give you a new part."
    • It covers the original purchaser of the ReadyLIFT product only.
    • Products with missing or defective components are covered. ReadyLIFT expedites the replacement part and may ask for the defective part back, at its expense, so its quality team can check it; that return does not hold up the replacement.
    • Wearable components, including but not limited to shocks, ball joints, heim joints, bushings and steering extensions, are covered for up to 1 year.
    • ReadyLIFT leveling kits, block kits and lift kits are not intended for off-road abuse, and damage from off-road abuse voids the warranty. Exception: ReadyLIFT Jeep SST and Terrain Flex lift kits are designed for normal off-road use and stay covered in recreational off-road environments.
    • Not covered: discontinued, clearance or outlet products; labor, installation, surcharges or other fees from the original purchase; consequential damage to the vehicle. ReadyLIFT may change, modify or cancel the warranty without prior notice.
    • Claims: contact us with your order number before removing a part you think is defective, and we'll start the claim with ReadyLIFT for you.

  • Free shipping

    Ships free to the lower 48 states, with no minimum order.
    • Order by 5 PM ET on a business day and it starts processing the same day.
    • Most orders arrive within 1-5 business days.
    • We email your tracking number as soon as it ships.

  • Inspect on delivery

    Check the arms or brackets and the hardware against the parts list before you start. Check it as soon as it arrives.
    • Look for crushed ends, punctures or tears in the carton.
    • If something looks wrong, take photos of the box and the parts (and if a driver asks you to sign, note the damage on the receipt).
    • Open the box and check the parts against the parts list before you install.
    • Email support@prestigetruck.com right away with your order number, a short note and photos. We send a replacement or a full refund at no cost to you.

  • 30-day returns

    Return it within 30 days of delivery, unused, in the original packaging, with proof of purchase.
    • Email support@prestigetruck.com with your order number. We reply within 1-2 business days with instructions.
    • Damaged, defective or wrong item: we send a prepaid label or arrange a pickup.
    • Changed your mind: you pay return shipping. No restocking fee.
    • Refunds go back to your original payment method within 7 business days of approval. See our returns policy.
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