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Carli - RAM 2500/3500 6" UNCHAINED 3.5 System, BASE, Diesel 03-09

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Additional Info

CARLI Suspension - Dodge 6" UNCHAINED 3.5 System, Diesel, 4WD, 2003-2009 BASE

SKU: CS-DUC35-6-03

The Unchained is a purpose built kit. 3.5" Front Kings and 4-Tube Bypass rear 3.0" shocks are paired with optioned Torsion Sway Bar, High Clearance Control Arms and Full Leaf in the rear for unsurpassed off-road capability from a bolt-on suspension system. A roll cage should be considered at this level of suspension.

Shock Diameter - 3.5"
Front Lift - 6"
Rear Lift - 4"
Tire Size - Up To 37"
Front Travel - 12.5"
Rear Travel - 13"

Base Kit Includes:

CS-DMRC6-03-D - Multi-Rate Coils
CS-DPRB-03 - Track Bar
CS-DPRBDROP-6 - Track Bar Drop Bracket
CS-DRAPKG-03 - 6" Radius Arms
CS-DRA6-DROP-03 - Radius Arm Drop Brackets
CS-DCM6-03-L - Radius Arm System with Long Crossmember
CS-DUC35SPKG-6-03-D - Unchained 3.5" Shock Package, Stainless Shafts, Limit Straps, Short Reservoir Mounts
CS-DFST525 - Fabricated Shock Towers
CS-DRBD-6 - Rear Bump Drops
CS-DFBD-6 - Front Bump Stop Drops
CS-D6BBL-03 - Brake Lines
CS-HOLESAWKIT-4.5 - 4.5" Hole Saw And Arbor
CS-DRSMKIT-03 - Rear Shock Mounts
CS-D30GUSSET - Rear Shock Gusset Kit

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

2003-07 Rams MUST convert to factory “T-Style” steering

Kit Options:

Sway Bar Option


6in Torsion Sway Bar +$


Rear Leaf Options


6in Diesel Full Spring Pack +$

Add Long Travel Air Bags

Long Travel Air Bags 03-08
SKU: CS-DLTB-03-4.0 

Add Air Bag Spacer

Air Bag Spacer
Airbag Spacer

Add Pitman Arm

Drop Pitman Arm 03-08
SKU: FTS-93001


Drop Pitman Arm 09-13
SKU: FTS-93012


Add Carrier Bearing Drop

Carrier bearing Drop +$


Add Steering Stabilizer

T-Style Stainless Low Mount Stabilizer +$


T-Style Stainless High Mount Stabilizer +$

T-Style Stainless Opposing Stabilizers +$

Add Hydraulic Bump Stops

Hydro pneumatic Front Bump Stops 6" Lift +$

Add Axle Truss

Front Axle Truss +$

Fabricated Axle Truss



Where the Dominator 3.0” is more balanced, the tuning in the UnChained System is enough to put the build quality of the rest of the truck to the test. At this level of suspension, customers should install a cage as the off-road capability far exceeds the capability of the truck itself. The Front Boasts massive, long-travel 3.5” King Shocks with an off-road oriented tune; the rear, 3.0” 4-Tube King Bypass Shocks. The 4-tube bypass will have far more bottom-out resistance than their smooth-body counterparts and their capability is user tunable to achieve exactly the rear ride desired by the purchaser (More on this in “The Details”).

What does all this mean? Uncompromised off-road ability with an amazing on-road ride resulting in a truck that’s a blast to drive in all environments.


Wheel and Tire:

This system will fit up to a 37” tire on wheels no more than 9” wide with 4.5” of backspacing. 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:

System Notes:

Wheels - Carli Recommends a 17"-18" Wheel, no more than 9" wide with 4.5" of Backspacing on 6" Systems

Tires - 37", E-Rated Tire Fitment is Recommended. Recommended unloaded Tire Pressure 45F/40R

Recommended Configuration - Carli 6" Suspension 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.

Endlinks - 2010-2013 vehicles have 2 possible sizes of Sway Bar End Links. Place a socket on the nut that compresses the rubber End Link bushings; fitment of an 18mm socket will indicate the need for the 12mm Extended End Link.

Torsion Sway Bar - Selection of the Torsion Sway Bar Replacement will not Require size selection as the entire sway bar assembly is replaced.

Front Drive Shaft - Front drive shaft MUST be lengthened 2"

Rear Drive Shaft - Rear Driveshaft must be checked for 1 piece or 2 piece units. It is recommended that 2 piece Driveshafts order a carrier bearing drop, PN# CS-CARRIERDROP-D

Pitman Arm - A drop pitman arm is REQUIRED for 6" suspension kits. Pitman Arm Selection: [2003-2008: CS-PITMAN6-03]; [2009-2013: CS-PITMAN6-09]

Steering Linkage - Carli 6" suspension kits MUST run T-style steering linkage. Y-style linkage does not have enough angle of articulation to support the additional lift height and travel.


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