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Carli - Ford F250/F350 4.5" Commuter 2.0 System, BASE, Diesel 17+

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CARLI Suspension - Ford 4.5" Commuter System 17+


A Budget friendly system with our Carli Signature Shock Tuning. This system was designed and built for the truck that keeps it on the pavement.

Shock Diameter - 2.0"
Lift Height - 2020+ 5.5" / 2017-2019 4.5"
Tire Size - Up To 37"
Front Travel - 11.5"
Rear Travel - 12"

5.5" Lift - 2020+ F250/350 4x4 Diesel, Base Kit
4.5" Lift - 2017-19 F250/350 4x4 Diesel, Base Kit

Base Kit Includes:

CS-FMRC-05 - Multi-Rate Coils
CS-FATB-17 - Track Bar
CS-FORDBBL-45-17 - Brake Lines
CS-FRAD-17 - Radius Arm Drops
CS-FBDF-45-17 - High Clearance Bump Stop Drop, Front
CS-FCASTERSHIM-4.5 - 2 Degree Caster Shims
CS-F45SPKG-CS20IFP-A - Carli SPEC 2.0" Shocks, Front and Rear

A “Base Kit” SKU must be accompanied by the SKU of a Sway Bar and Leaf Spring option to form a complete system.

Kit Options:

ADD Sway Bar Option

2017+ Sway Bar End Link Kit - 4.5" +$


Torsion Sway Bar - Includes Sway Bar End Link
SKU: CS-FTSB-4.5-17 

ADD Rear Leaf Option

2017+ Add-A-Packs - 4.5" Lift +$
SKU: CS-FPAP-45-17


ADD Long Travel Air Bags

Long Travel Air Bags 3.5" Axle Tube +$
SKU: CS-FLTB-17-3.5 


Long Travel Air Bags 4.0" Axle Tube +$
SKU: CS-FLTB-17-4.0 

Long Travel Air Bags 4.5" Axle Tube +$
SKU: CS-FLTB-17-4.5 


ADD Radius Arm Option

Radius Arms for 4.5in Lifts +$
SKU: CS-FARA-45-05 


ADD Carrier Bearing Drop

Carrier Bearing Drop +$


Add Steering Stabilizer

Low Mount Steering Stabilizer +$

High Mount Steering Stabilizer +$




The Super Duty Commuter 2.0 system is designed for people seeking the best on-road ride quality that don’t plan to off-road their vehicle beyond low-speed trail driving. Utilizing Carli SPEC 2.0″ Diameter, Internal Reservoir shocks, we’ve developed a tune that delivers all-around comfort and ride quality designed for on-road, in town, highway, and towing/hauling.

The mono-tube, internal reservoir, Carli SPEC 2.0 boasts 6063 Aluminum construction, anodized body for corrosion resistance, 5/8″ hardened steel chrome plated shaft, full serviceability & rebuildability and are built with 1-peice bushings in the 6061 billet rod-ends. These shocks are spec’d with a premium 5WT oil to balance lubricity, consistent damping and the widest available range in temperature variation. We back these with a 1-year warranty, serviced by Carli. More details on these shocks can be found HERE.

The truck will sit 4.5” higher in the front and have more wheel travel thanks to the taller, Progressive Rate Coil Springs. Radius Arm Drop Brackets reset the pivot point and keep the travel linear for the best ride while the Sway Bar Link & Drop Brackets Kit resets the sway bar engagement point. The End Link Kit is listed as an “option”, but it’s necessary to run. We plan to release a Torsion Sway Bar in the near future so the end-link options were pulled from the base kit and made selectable in anticipation of the second option. 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.

NEW for the Carli-SPEC: In the previous version, we optimized the Commuter for the add-a-pack while recommending against our full replacement leaf springs. With the new shocks and tuning, the rear can now 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 included Carli Fabricated 2” 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.

Wheel and Tire: Factory Wheels SHOULD NOT be run with oversized tires. They’re known to rub the radius arm, sway bar and most concerning – Brake Lines. Factory tires and factory wheels will work without issue but we DO NOT recommend running oversized tires on factory wheels. On our 4.5” Ford Systems, we recommend 17”-18” wheels, no more than 9” wide with 5” of backspacing with a 37”, E-Rated Tire. The more rubber, the better the small bump compliance will be at proper inflation pressures. The ride will firm up as you go larger in wheel diameter. For more details, see our article on wheel and tire selection and tire pressures:


Vehicle Year - 2017+
Engine - Diesel 
Model - F-250/350
Lift Height - 4 1/2"

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