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Carli - RAM 2500/3500 3" Performance 2.5 Long Arm System, BASE, Diesel 03-09

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Additional Info

CARLI Suspension - Dodge Performance 2.5 System, Diesel, 2003-2009 Base Kit


Identical Valving, travel and shocks as the Pintop but with an eyelet shock mount on the front and Your choice of Billet or Fabricated Shock towers.

Shock Diameter - 2.5"
Lift Height - 3"
Tire Size - Up To 37"
Front Travel - 12"
Rear Travel - 12"

Base Kit Includes:

CS-DLRC-10-D - Linear-Rate Coils
CS-DPER25SPKG-03-D-LA - Carli Tuned, Long Travel King 2.5" Remote Reservoir Shocks, 5-Port Piston, Stainless Shafts, Limit Straps, Short Reservoir
CS-SRM-25 - Short Reservoir Mounts, 2.5"
CS-DLSK315 - Ram 15" Limit Strap Kit
CS-DATB-03 - Track Bar
CS-DFST625 - Fabricated Shock Tower
CS-DLAPKG-03 - Dodge Long Arm System
CS-DLA3-DROP - Long Arm Drop Brackets
CS-DCM3-03-S - Dodge Long Arm Drop Bracket Crossmember
CS-DFBD-1 - Front Bump Drop 1"
CS-D3BBL-03 - Braided Brake Lines

Kit Options:

ADD Sway Bar Options


3in Torsion Sway Bar +$


ADD Rear Leaf Options


Diesel Full Spring Pack +$


Diesel Heavy Duty Full Spring Pack +$



ADD Long Travel Airbag

Dodge 2003-2011 Long Travel Air Bags, Diesel +$
SKU: CS-DLTB-03-4.0 



ADD Long Travel Airbag

Low Mount Stabilizer, T-Style +$

High Mount Stabilizer, T-Style

Opposing Stabilizers, T-Style, Lifted


ADD Axle Truss

Front Axle Truss - AAM 9.25 | +$


Fabricated Axle Truss




The Performance 2.5 Lift system is a no-compromise utilitarian, all-around suspension system. The front end is converted to our Fabricated Long-Arm System and paired with a Torsion Sway Bar for unrivaled articulation and axle travel. The rear is outfitted with your choice of Full Progressive Leaf Spring Packs and the King Shocks are longer-travel than our short arm systems with a long-arm specific tuning profile. This system is our personal favorite as it would suit anyone’s taste. The on-road ride is fantastic, the off-road ride will run circles around our short-arm Dominator 3.0 (albeit, not as soft on the road but far more controlled) and allow you to drive to the capability of the chassis without worrying that you’ve equipped the truck with enough shock to destroy the truck around the suspension. If it’s in the budget, this is the system we’d recommend for every Ram owner.

The Details:

With the release of the 3" Long Arm, comes the Long-Arm equipped Systems. The decision has been made to discontinue the older, short-arm variation of the Performance 2.5" in favor of a Long-Arm equipped, extended travel version at which you’re looking now. This system requires customers to cut off the factory control arm mounts in favor of the Carli Drop Brackets to house our internally gusseted, fully fabricated Long Arm System. These arms are over 50% longer than the factory arms boasting 3/16” construction, internal gusseting, extended travel capability, more linear travel stroke and a better ride quality given their length and position parallel to the ground.

To take advantage of the Long Arm’s capability, we’ve included a 6.25” tall, slide over-design shock tower to ease installation and accommodate the longer (12” Travel) shocks. Included 1” front bump stop drops and limit straps ensure customers can dish repetitive beatings to their King 2.5” shocks with confidence of full & safe utilization of the shock’s travel. In a short arm truck, it’s not uncommon to see 7” of up-travel (metal to metal) and 3” of down-travel.

Wheel and Tire:

This system will fit up to a 37”x12.5” tire with on 17”-18” wheels with 5-5.25” of backspacing. If considering Fiberglass Fenders, a 4.5” Backspacing on a 9” Wide wheels will fit up to a 37x13.5” wide tire. This system was tuned with 17” wheels on, 37” Toyo M/T at 40F/35R. 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 5.75" of Backspacing on Leveling Systems

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

Recommended Configuration - Carli Leveling Systems are Designed and Tested on Vehicles with 17"-18" Wheels with 35", E-Rated Tires. Stock wheels and tires or running a larger wheel diameter will result in a stiffer ride.

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

Fitting 37" Tires - 37" Tires will fit with the above wheel specifications if the system is equipped with Full Replacement Leaf Springs and Control Arms.


Part No: CS-DPER25-03-D
Vehicle Year - 03-09
Model - 2500/3500
Engine - Diesel
Lift Height - 3" 

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