8" Radius Arm System w/Front Dirt Logic 4.0 Coilovers w/Reservoir & Rear 2.25 Shocks Kit w/8.0" lift
Estimated Delivery in 3-7 business days
8" Radius Arm System w/Front Dirt Logic 4.0 Coilovers w/Reservoir & Rear 2.25 Shocks Kit w/8.0" lift
Estimated Delivery in 3-7 business days
| Part Number | Item | Quantity |
|---|---|---|
| K2275DL | 8" Radius Arm System w/Front Dirt Logic 4.0 Coilovers w/Reservoir & Rear 2.25 Shocks | 1 |
Product Description
Special Shipping Required
This item must be shipped truck freight. Delivery requires a business address with a dock or forklift.
Fabtech's Radius Arm system for the Ford Super Duty is built to handle the on and offroad demands of the truck enthusiast. This system is a complete upgrade to the factory suspension and will provide additional strength for use with oversized tires.
The heart of this quality system is Fabtech's tubular Radius Arms. The design of these arms comes from Fabtech race components built with a tubular structure reinforced by a dimple die side plate and heavy gusseting for rugged offroad use. They are a superior upgrade to the stock stamped arms.
Included in this system is the massive Dirt Logic 4.0 Coilover Conversion for outstanding damping capacity offroad with a quality on road ride. The Coilover bolts in place of the factory coil spring without removal of the coil spring bucket. The giant 4" diameter aluminum remote reservoir mounts horizontally above the Coilover to allow for full compression travel with oversized tires. The Dirt Logic 4.0 Coilover is the biggest and baddest on the market for the Ford Super Duty.
High quality components with properly designed suspension geometry is what sets this system apart from all other Radius Arm suspensions. System includes a free 5 year 60,000 mile powertrain warranty.
Each Fabtech component has been designed with specific features and benefits that create this quality suspension system. For a greater understanding of each these components, please see below.
Features
- Fabtech Replacement Radius Arms
- Front Dirt Logic 4.0 Resi Coilovers
- Trac Bar Relocation Bracket
- Sway Bar Drop Brackets
- Pitman Arm
- Rear Leaf Spring Kit
- Rear U-bolt Kit
RADIUS ARM
Tubular construction with dimple die side plate for superior strength. Arms are offset for full turning radius with 15.50 wide tires on 5" back space wheels. Adjustable alignment cams on the arms allow for an additional 1.5-2 degrees of caster adjustment. Each Radius Arm features Fabtech's proprietary 5 Ton Joint on the pivot side at the frame. These joints have been proven in rugged military use for over 10 years and are both quiet and strong.
DIRT LOGIC 4.0 CONVERSION
Simplistic super stout 1/4" thick steel brackets utilize the factory coil bucket to bolt in the massive Dirt Logic 4.0 Coilover. A 4" diameter stainless steel body with 1.25" NitroSteel® piston rod provides maximum corrosion resistance and durability for the most aggressive driving conditions. coil springs handle the weight of the Super Duty while providing 2" of increased wheel travel over stock. The remote aluminum reservoir dissipates heat for consistent damping when driving over extreme terrain at high speed. The ultimate of all coilover shocks.
TRACK BAR BRACKET
1/4" thick steel bracketry repositions the factory track bar to center the axle under the vehicle with the increased lift height. Super stout box style bracket is designed to eliminate deflection when the track bar moves through its full cycle.
DROPPED PITMAN ARM
Forged steel construction with high strength material that exceeds the factory specifications. Designed specifically for the Ford Super Duty to work in conjunction with the factory drag link and Fabtech's Track Bar bracket for proper steering functionality.
FRONT BUMP STOP BRACKETS
Heavy duty 1/4" thick steel brackets extend the factory bump stop cushions down to eliminate over cycling of the suspension. The bracket's semi boxed construction can handle the full impact compression of the massive Super Duty.
SWAY BAR BRACKETS
1/4" thick steel drop brackets re-position the front sway bar for the increased ride height. This allows the sway bar link ends to fully cycle without binding throughout the extended travel range.
BRAKE LINE BRACKETS
Re-positions the factory brake lines down on the frame for the new travel range without having to open the brake system. Keeps factory fluid system intact.
STEERING STABILIZER BRACKETS
Retains the stock Ford heavy duty steering stabilizer with a 1/4" thick steel bracket and support brace to help reduce tire shimmy.
DRIVESHAFT SHIM KIT
Allows for incremental rear driveline angle change at the carrier bearing on two piece driveshaft applications to eliminate vibration with the increased ride height.
REAR LEAF SPRINGS
High quality Canadian spring steel creates this 4 leaf pack with a bottom overload leaf to handle heavy cargo with excellent flexibility. Each leaf has a tip liner to reduce friction along with vulcanized spring eye bushings to provide a smooth quiet ride.
REAR SWAY BAR BRACKETS
Brackets reposition the sway bar end links down on the frame for the new ride height allowing for proper sway bar functionality without binding.
REAR U-BOLTS
U-Bolts designed to attach the entire rear differential to the vehicle. A critical part that demands the best quality for your vehicle.
DIRT LOGIC 2.25 SHOCKS
Constructed of a stainless steel body with NitroSteel® piston rod for maximum corrosion resistance and durability. Superior ride quality both on and offroad. Excellent damping for offroad use.
| Year | Make | Model | Drive | Position | Lift |
| 2024 | Ford | F-350 Super Duty | 4WD | 8.0" | |
| 2023 | Ford | F-350 Super Duty | 4WD | 8.0" | |
| 2022 | Ford | F-350 Super Duty | 4WD | 8.0" | |
| 2021 | Ford | F-350 Super Duty | 4WD | 8.0" | |
| 2020 | Ford | F-350 Super Duty | 4WD | 8.0" | |
| 2019 | Ford | F-350 Super Duty | 4WD | 8.0" | |
| 2018 | Ford | F-350 Super Duty | 4WD | 8.0" | |
| 2017 | Ford | F-350 Super Duty | 4WD | 8.0" |
FABTECH LIMITED LIFETIME WARRANTY
Fabtech Motorsports 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.
FREE Shipping applies to all products shipped to the lower 48 United States, excluding truck freight items that exceed 100lbs or custom orders.
- Leaf Springs, Axles, Long Travel Systems, and other products that get shipped on pallets will require specific shipping costs.
- We do not ship truck-freight items out of the country, only to freight forwarders setup by the buyer.
All other shipping destinations that are available will be calculated at checkout, or you can contact us prior to your purchase.
Shock Surplus ships to the following destinations, and more:
- All of North America
- All of Europe
- United Arab Emirates
- Australia
- Most Asian countries
Contact us for a free direct quote to your location.
30-Day Hassle-free Return & Exchange Policy - Stuff Happens!
We sell only brand new, never-installed, authentic, brand-name parts. If your order arrives damaged, is missing hardware, appears used or pre-installed, or is incomplete in any way, we will jump into action to send replacements. We can usually have replacements sent immediately for these rare cases of damaged, incomplete, or incorrect orders.
Shock Surplus allows returns and exchanges inside of a 30-day window starting from time of receipt by the customer. It is our mission to make every transaction smooth, and fix any issues you may encounter.
- Products must be new, unused, and in uninstalled condition for us to accept a return.
- We do not accept installed parts, so be sure you have the correct part number(s) before attempting to install them on your vehicle.
- Returned parts must contain all associated hardware, otherwise that part number will be deducted from your refund.
Exchanges
No restocking fees. Our staff is on hand to make sure that your first purchase is exactly correct for your needs and vehicle, do not hesitate to contact us prior to your purchase through Live Chat or Email.
To start a return or exchange, please fill out THIS FORM (located at the bottom of the page), and be as specific as possible, and someone will be in touch with you in ~1 business day. The typical turnaround for a refund or exchange is 5-10 business days, depending on the complexity of the case. Exchanges are subject to availability of stock; any exchanges proving out of stock will be refunded to the customer.
Return Shipping Costs
We are available to make every transaction flawless for our customers, the Shock Surplus staff is available to guarantee fitment on every part we sell. Shipping costs responsibility are as follows:
- Misboxed Item - Shock Surplus Responsibility
- Incorrect Item Sent - Shock Surplus Responsibility
- Incorrect Item Ordered - Customer Responsibility
- Order Error (Address, Vehicle Fitment) - Customer Responsibility
- Changed Mind - Customer Responsibility
- Damaged in Transit - Shock Surplus Responsibility
Returns Under Customer's Responsibility
- Below 50lbs - $15 flat rate deducted from the refund. Shock Surplus will provide a shipping label to make this process as easy as possible.
- Greater than 50lbs - Discounted shipping rates to get the product(s) back to Shock Surplus, that amount will be deducted from the refund. 50lb+ packages are automatically labeled 'Oversize' by our couriers, and automatically incur a $25 charge on top of the shipping fee.
Returns Under Shock Surplus' Responsibility
- Free, we will provide a return shipping label and ship the replacement parts for free. If a refund is preferred, a full refund will occur.
Refunds
You should expect to receive your refund within 5-7 business days of our warehouse receiving your return. The amount of time it takes for your refund to show up in your account varies by payment method, but typically takes 1-3 business days. You will also receive a message confirming the refund via the marketplace where the purchase happened. We wish we could speed up the process of funds reaching your payment method following a refund, but it is out of our hands.
If you need to return an item, simply login to your account (top right corner of the screen), view the order using the "Complete Orders" link under the My Account menu, and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item. You can also contact contact us for any return requests.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page.
International Orders
- Orders are final, no returns
- Orders shipped to a freight forwarder in the US, are eligible for return if the product has not left the United States.
- It is the responsibility of the buyer and exporter to ensure correct items received before exporting. Shock Surplus is not responsible for items received once the freight forwarder has shipped the product.
- The buyer is responsible for import fees and taxes into their country. That is not covered in the shipping fee that Shock Surplus charges.
Product Details
Whether you want to upgrade, add a reservoir, or find something more affordable, contact us with any questions!
View full product specifications
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Free shipping within the lower 48 United States
