| F250/350 Lift Height |
TREMOR Lift Height |
| 3.5″ |
1.5″ |
| Front Travel |
Rear Travel |
| 9″ |
13.8″ |
| Shock Diameter |
Tire Fitment |
| 2″ |
37″ x 12.5″ |
Not compatible with the ONBOARD SCALES/SMART HITCH. Modifying the ride height or spring rate will interfere with this system’s performance.
Rear Leaf Spring Selection
*REQUIRED* - Our "PAP" base kit pair to stock springs or Carli add-a-packs. The "FSP" system pairs to the Carli Full Leaf Springs. Optimal Ride Comfort and hauling capability will be the Carli FSP kit + Full Leaf Springs and an Airbag Supplement (contact your retailer for recommendations as we do not make airbags for the leveling height). For those not wanting to run airbags, the PAP kit combined with Stock leaf springs (or Carli Add-a-Packs) is the best option. This is far more limited in ride quality than the FSP counterpart but the tuning squeezes as much ride quality from the factory spring as possible with its massive capacity. Selecting "NO Rear Leaf Spring Selection" will result in an unknown ride quality and height result as all Carli Systems are optimized to either the Add-a-Pack or Progressive Leaf Springs.
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17-24 FORD F250/350 4X4 PROGRESSIVE ADD-A-PACK - 1" LIFT
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17-24 FORD F250/350 4X4 FULL PROGRESSIVE LEAF SPRING KIT - 1" LIFT
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17-24 FORD F250/350 4X4 HD +1000LBS PROGRESSIVE LEAF SPRING KIT - 1" LIFT
Front Sway Bar Selection
*REQUIRED* - The Commuter System has been optimized for use with the Torsion Sway Bar; this sway bar upgrade is a HUGE ride quality upgrade. Maintaining the factory sway bar through use of the Sway Bar Drops or Extended Link Kit is only recommended for customers with snow-plows, in-bed campers or who are constantly hauling to the capacity of the truck.
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17-24 FORD F250/350 4X4 STOCK SWAY BAR FRAME DROP BRACKET - 2.5"/3.5" LIFT
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20-24 FORD F250/350 4X4 EXTENDED SWAY BAR END LINK & DROP BRACKET KIT - 3.5"
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17-24 FORD F250/350 4X4 TORSION SWAY BAR KIT - 2.5"/3.5" LIFT WITH END LINKS
Corrects Geometry in Carli Leveling Suspensions
Leaf Spring Shackle
*OPTIONAL* Much of the jarring ride of the Super Duty rear can be attributed to the factory vulcanized bushings in the leaf spring pack and shackle. The factory shackle is very strong BUT the design is not conducive to a smooth ride. The Carli shackle is constructed of 1/4″ American cold-rolled steel. The mid-length gusset ensures no deflection while the serviceable bushings offer a far superior ride to the bind of the factory bushings.
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05-24 FORD F350/350 4X4 FABRICATED LEAF SPRING SHACKLE
SKU: CS-FSHACKLE-11 - Greasable and Rebuildable- Far Better Ride than Factory Shackle- 1/4" Steel Construction- Fits Factory and Carli Springs
2° Pinion Shim2° Pinion Shim
*OPTIONAL BUT RECOMMENDED* When modifying the rear leaf springs (add-a-pack or Full Spring Pack) of the 2017+ Super Duty platform, there's a small chance you'll induce a driveline vibration around 70mph when under power from the rear drive-line. These pinion shims will correct the angle to 4°-5°, ideal for our lifted applications. Although these will not be "required" on every truck, we've found the 4°-5° spec to be superior in our applications and these are FAR easier to install initially than correctively.
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05-24 FORD F250/350 4X4 FORD PINION SHIM KIT, 2 DEGREE
SKU: CS-FPSKIT-3X2 - 2° Pinion Shim Kit- Includes new Center Pin
Adjustable Radius ArmsAdjustable Radius Arms
*OPTIONAL* - Icing on the cake, these arms have been completely redesigned for the 23+ Super Duty. They boast Limit Strap Protection for your Front Shocks, 1/4" Boxed Steel Constructions, Serviceable 17-4 Stainless Spherical Bearings and Adjustable Caster Correction up to 3.5° over stock specs to leave Death-Wobble in the rear-view.
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23-24 FORD F250/350 4X4 FABRICATED RADIUS ARMS - 3.5" LIFT
SKU: CS-FARA-LVL-23 - 0.5°-2.5° of adjustable Caster correction- 3/16 Construction, Full Length Internal Structure- 12" Limit Straps Kit Included- 17-4 Stainless Spherical Joint for longevity and bind free Cycling.
Low Mount Steering StabilizerLow Mount Steering Stabilizer
*OPTIONAL* - Bolt in steering stabilizer which compliments a Carli, or factory, high mount stabilizer. Adjustable from 70-200 psi to run neutral (no directional influence at 70psi) or at 200psi to counter the left-hand pull inherent to tires like Nitto Trail Grapplers. Run in conjunction with the Carli High Mount for the ultimate Dual, Opposing Steering Stabilizer combination that's infinitely adjustable.
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23-24 FORD F250/350 4X4 LOW MOUNT STEERING STABILIZER WITH DIFFERENTIAL GUARD
SKU: CS-FLMSS-23- Custom Valved for Larger Tires, Adjustable Nitrogen Pressure- Includes Differential Guard and Clamp- Combines with High-Mount Stabilizer for Opposing Setup
High Mount Steering StabilizerHigh Mount Steering Stabilizer
*OPTIONAL* - Bolt in replacement for the factory stabilizer. Adjustable from 70-200 psi to run neutral (no directional influence at 70psi) or at 200psi to counter the right-hand pull inherent to tires like Toyo Mud Terrains.
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17-24 FORD F250/350 4X4 HIGH MOUNT STEERING STABILIZER
SKU: CS-FHMSS-17 - Long Lasting Performance and Appearance- Bolt in Replacement for OEM Stabilizer- Works on leveled and lifted trucks ONLY- Not Compatible with Drop Pitman Arms
Trophy HitchTrophy Hitch
*OPTIONAL* - Get your over-sized spare out of your bed - crank it into the factory location and secure it with our 3-way tie-down with the Carli Trophy hitch. Boasting 16,000lbs. of capacity via the 3" hitch receiver, direct bolt in installation, and up to a 38" spare tire in the factory location!
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17-24 FORD F250/350 4X4 FORD TROPHY HITCH
SKU: CS-FHITCH-1723- Direct Bolt in, Rated to 16,000lbs., 3" Hitch Receiver- 3/16" and 1/4" Cold-Rolled American Steel- Utilizes Factory Winch + 3-way Tie-Down to Secure Spare- 38" Spare Tire in the Factory Location- May Require Exhaust Modification- Requires 5/8" x 4" (usable shank) Hitch Pin
BACKCOUNTRY SYSTEM - IN DEPTH
Utilizing Carli SPEC 2.0″ Diameter, Remote Reservoir shocks, we’ve developed a tune that delivers all around comfort and ride quality designed for on-road, in town, highway, towing/hauling as well as slow to mid speed off road use. The remote 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.
The Super Duty Backcountry 2.0 system is designed for people seeking the best ride on and off-road quality on a budget; basically, the Commuter for those that want to have a little dirt-road fun in their 8,500lb truck without losing the on-road ride quality or usability for which the truck was designed. You’re no longer limited to the highway while gravel roads become uninteresting as you can drive them at speed with one hand on the wheel.
The truck will sit 3.5” higher in the front and have more wheel travel thanks to the lighter rate Carli Coil Springs. 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 Radius Arm Drop Brackets & 1° Caster Shims to correct caster and provide proper tracking. A fabricated, High-Clearance Bump Stop Drop to keep the springs clear from the contacting the factory bump stop. The front Sway Bar Geometry will need to be addressed with your choice of a Sway Bar Drop Bracket (more economical, maintains the factory Sway Bar End Links) or our Extended Sway Bar links with relocation brackets – a FAR more robust option. For those seeking the most possible ride quality, we offer our full replacement Torsion Sway Bar that lightens the most neglected spring rate – the factory sway bar. From the Torsion Sway bar upgrade, one can expect a far more compliant feel and increased articulation with only slightly more body roll.
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 (eliminates the factory block and maintains payload capacity; pairs with a rear bump stop drop). 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 (2 main leaf springs) than its 350 counterpart (3 main leaf springs). 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 you own an F250 built with the Tremor or high-capacity tow package, these are equipped with an F350 rear spring and should avoid the add-a-pack, as well. If capacity is a concern, an aftermarket airbag system should be installed to complement the Full Progressive Leaf Springs to restore the F350 capacity. We recommend a system that will allow the airbags to disconnect from the lower mount during suspension cycling to ensure you’re able to take advantage of all your rear suspension travel. 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.
This system will not achieve a proper rear-high stance without the installation of the Add-a-Pack or Full Progressive Leaf Spring Pack. Without any rear option, an F250 will sit about rear-low. If a Carli rear spring option is not purchased, one can install the taller 2017-19 Ford 3″ rear block for a leveled stance but rear ride quality will not be optimized (Factory Block PN: HC3Z-5598-A and HC3Z-5598-B)
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 Ford Leveling Systems, we recommend 17”-18” wheels, no more than 9” wide with 5.5” of backspacing with Carli Fabricated Radius Arms or 5” Backspace with factory arms; 5” will require a bit more trimming. Tires, 37×12.5” will fit with some trimming; 35” will likely fit without trimming. 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.
