Carli 4.5" Super Duty Coil-Over 2.5 Suspension System
Stainless Shock Shafts Are Now Standard!
Super Duty King Coil Over 2.5 Suspension System
This suspension system will be the last system you will buy for your Ford truck. This is not a "lift kit"`. It is a true suspension system.
The Coilover system rides nearly identical to the Pintop. Take the description for the Backcountry and throw an exponent on it. Benefits of the Coilover System over the Pintop system are aesthetics (what looks cooler than a coilover?), height adjustability for large bumpers/winch combination and future upgradability. Once the coilover plates are installed, you’re a Coilover tune and Front + Rear Bypass purchase away from owning the Coilover-Bypass System.
The Coilover system boasts Carli specific, blueprinted, King 2.5” Coilovers front and piggyback reservoir shocks rear. In an effort to provide customers with the best product, we designed a custom piston to determine proper base flow rates to ensure the shock works well in the heavy duty truck platform; we then tuned the shocks around the custom pistons based on the only thing that matters to us, seat-of-the-pants feel. We round off ALL our King shocks with shafts machined and polished from a solid piece of 17-4 Stainless. Unlike King’s standard shafts, there is no coating to wear off, weather can’t hurt them and if there is a small chip, you can round the edges with emery cloth to ensure the seal housing isn’t damaged as they’re not brittle like the stock, hardened shafts. The shocks are finished with King oil good to -55° F. Note that all King shocks are built with a plated steel body. If subjected to inclement weather for extended periods, we recommend wrapping your shocks in 3M to provide a moisture barrier that’s replaceable.
The Coilover is a Jack-of-all-trades system from which every Super Duty owner would benefit. Raising the Super Duty Platform then adding Carli Tuned, 2.5” diameter shocks (55% more piston surface area than a 2.0” shock) will support the argument that these trucks should come equipped with 2.5” shocks from the factory.
The truck will sit 4.5” higher in the front and have more wheel travel thanks to the coilover that mounts in the Carli Coilover Conversion Bracket. Radius Arm Drop Brackets reset the pivot point and keep the travel linear for the best ride while Sway Bar Links or Drop Brackets reset the sway bar engagement point. Bump Stop Drops protect the shocks from over-compressing, the Adjustable Track Bar centers the front axle and Stainless Brake Lines firm up braking and ensure there is enough line for the newfound travel. To round off the front end, we include Caster Shims to tighten the steering.
The rear can be outfitted with a replacement Full Progressive Spring Pack (reduces capacity to a “light” ¾-ton) or factory leaf-pack modifying Progressive Add-a-Pack (maintains factory payload capacity and pairs with the factory 3-5/8” block). This is where the F250 and F350 are a bit different. Since 2008, the main spring packs on these two trucks is different; the F250 has a lighter rate spring pack than its 350 counterpart. The F250 Add-a-Pack equipped systems are a nice improvement over stock; the F350 with the Add-a-Pack is still very stiff in the rear as the main pack doesn’t move much unless loaded. We recommend the Full Replacement Leaf Spring packs for both trucks but especially the F350 given the super-stiff factory springs. If capacity is a concern, the Full Progressive Leaf Springs can be supplemented back to the factory capacity of a SRW F350 with the addition of our Long-Travel Airbags. The Full Progressive Leaf Spring Pack will shift the axle slightly forward in the wheel well to ensure maximum tire clearance for a 37” M/T at full compression.
If ordering this kit with an Add-a-Pack, Super Duties equipped with a 2" tall block from the factory will require the factory 3-5/8" tall Block to achieve a leveled stance with the Add-a-Pack. Part Number: 7C3Z-5598-HB, 7C3Z-5598-JB
Contact us about custom options like front and/or rear bypass options as well as custom shock finishes.
Accept Nothing Less...
This system utilizes King Off Road Racing Shocks and their premier coil-over race technology. You'll find these same shocks (in longer travel specs) on race vehicles from Barstow to Cabo. We chose to implement a single rate linear spring that allows 0-2 inches of ride height adjustment.
Features:
- Superior Ride Quality
- Very Controlled Off Road
- Increased Cornering Capability
- Reducing and/or Eliminating Body Roll
- Tighter street feel Driving Characteristics, Increased Suspension Response
- Steering geometry is all within OEM specs, no additional components are necessary
- Towing/hauling capacity is the same as OEM, no reduction of capability
Fitment Guide:
- CS-F45-CO25-11 | 11-16 F250 / F350 4x4 (Old Part Number: CS-FORDCOS-11)
- CS-F45-CO25-08 | 08-10 F250 / F350 4x4 (Old Part Number: CS-FORDCOS-08)
- CS-F45-CO25-05 | 05-07 F250 / F350 4x4 (Old Part Number: CS-FORDCOS-05)
Components:
- KING 2.5"x10" Custom Front Coil Over Shocks
- KING 2.5"x12" Custom Rear Shocks
- 17-4 Stainless Steel Shock Shafts
- Coil Over Mounting Kit
- Radius Arm Drop Bracket Kit with Dimple Die Cross Member
- Sway Bar Endlinks (2011+ kit uses sway bar drop brackets instead)
- Adjustable Track Bar
- Bumpstop Drops Front and Rear
- Extended Braided Brakelines
Altered Vehicle Characteristics:
- 4.5" of Lift on the Front
- 2.5" of Lift on the Rear
- Vehicle is "Leveled"
- 10.0" of Front Wheel Travel
- 12.0" of Rear Wheel Travel
System Notes:
- Wheels - Carli Recommends a 17"-18" Wheel, no more than 9" wide with 5" of Backspacing on 4.5" Lift Systems.
- Tires - 37", E-Rated Tire Fitment is Recommended. Recommended unloaded Tire Pressure 45F/40R.
- Recommended Configuration - Carli 4.5" Systems are Designed and Tested on Vehicles with 17"-18" Wheels with 37", E-Rated Tires. Stock wheels and tires or running a larger wheel diameter will result in a stiffer ride.
- Add-A-Packs - Super-Duties equipped with a factory 2" Block will require the 3-5/8" Factory F350 Block [7C3Z-5598-HB, 7C3Z-5598-JB] to achieve a level stance.
- Leaf Springs - Full Replacement Leaf Spring Option Requires NO BLOCKS to achieve level Stance.
Full Leaf Upgrade Notes:
Choosing the full leafs over the mini packs will offer a better street ride, further decrease wheel hop, and eliminate the need for a rear lift block altogether.
Full Leaf Shipping Info - If you are choosing the full leaf upgrade we will need you to provide an address that accepts freight truck deliveries as the kit will ship on a pallet. Please contact us if you have any questions about shipping.
05-10 Sway Bar Options
- CS-FEL-05 OR CS-FEL-08 - Sway Bar End Links
- Easy Bolt-On
- Heavy Wall Material
- Excellent Articulation
- Rebuildable
- Ford Extended End Link for 4.5" Suspension System
2011-2016 Sway Bar Options
- CS-SBD - Sway Bar Drop
- Drops entire sway bar brackets for proper geometry
- 3/16" Steel Plate gusseted for utmost strength
- Black Powdercoat
- Grade 8 Hardware
Rear Lift Options
Although it is possible to order this kit with neither of these options, it is HIGHLY recommended that you do choose one of these options in order for this kit to perform as expected.
- CS-FPAP-(05, 08, 11) - Progressive Add-a-Pack
- Built in the U.S.A. By Deaver Leaf Spring
- Smooth progressive design
- Supplied with U-bolts and hardware
- Provides 2.0" of lift
- The O.E.M. load capacity is still maintained while improved ride is achieved
- OR
- CS-FFSP-(08, 11) - Full Progressive Leaf Spring Pack
- Block eliminating, Full Progressive Spring Pack
- Includes new U-Bolts and Rear Bump Stop Drops
- Provides a 1", rear high stance on Matching 2.5" Leveling Suspension Systems
- 35" Tire Fitment
Radius Arm Option
- CS-FFRA-05 - Radius Arms for 4.5in Lifts
- For 4.5" Systems
- 1° of Caster correction engineered into arm
- Internal Gusseting
- Limit Straps Included
- 1/2" Additional Tire Clearance
- Huge Johnny Joint at Frame Connection for longevity and bind free Cycling
Carrier Bearing Drop
- CS-CARRIERDROP-F - Carrier Bearing Drop
- Carrier Bearing Drop for 4.5" Suspension Systems with 2-piece rear driveshaft
- 4 SHIMS, 2 Bolts 1/2" x 2", 2 nuts, 4 washers.
- Fitment: 2005-2016