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2005 Chevrolet 6.6L Duramax LLY
SKU #: CS-DPER25-12-D MPN #: CS-DPER25-12-D

Carli 3" Performance 2.5 Long Arm Suspension System 10-13 Ram 2500 / 10-12 Ram 3500 6.7L Cummins

$8,546.00
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Model Years
Description
The first system featuring King Off Road 2.5 Race Shocks and Carli's first premier suspension kit. The Performance 2.5 has been around since day one and, naturally, has been through the longest refinement period of any Carli system. Sporting a plush street drive that will give you a "car like" feel, while still letting you pound some humps in the dirt. The first seasons chasing and running support in Baja were done using the Performance 2.5 system on Carli's own Dodge Ram trucks. CARLI'S SIGNATURE LONG ARM SYSTEM The Performance 2.5 System is just another example of Carli's unwillingness to cut a single corner. Sure, they could have included short control arms, and a minipack out back, but they knew the capabilities of the shocks surpassed some of these items and that ultimately the performance of the suspension would not be fully utilized unless other upgrades were standard equipment to the system. That's why this kit is treated to Carli's signature Long Arm System and Full Progressive Rear Springs along with plenty of other high end components. The Performance 2.5 will do just about anything you can fathom, whether its nailing a whoop section or delivering you the most controlled and comfortable ride on your commute to work. 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 the 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. SLIDE OVER DESIGN SHOCK TOWER To take advantage of the Long Arm's capability, Carli has 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 and 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. The combination of the long arm system's 6.25" tall tower and 1" bump drop allows for the 12" travel shock and shifts the front axle's operating range down 1"; the result, 3" more down-travel when compared to a short-arm system only sacrificing 1" of up-travel. This is a far more balanced setup spec'd with 6" of up travel and 6" of down-travel ensuring the front end maintains contact over rough terrain. CARLI TUNED LONG TRAVEL 2.5" KING SHOCKS This system boasts Carli specific, blueprinted, Long-Travel King 2.5" shocks on all four corners. For the Long Arm system, Carli designed a second, off-road oriented 5-Port custom piston opposed to the 3-Ports in a short-arm Pintop 2.5" System. This piston and long arm tuning profile alters flow of the pressurized shock oil displacing a wider surface area of the tuning shims to increase bottom-out on sharp hits while providing a predictable, comfortable street ride. ALL of Carli's King shocks are treated to 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 is far less likely to 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. Your truck will sit 3"-3.25" higher in the front (year/cab configuration dependent) with 70% more suspension travel than the factory platform thanks to the taller, linear rate coil springs. These systems require the extended travel capability of the linear spring as the free-height of the multi-rate coils was too short to reach the droop potential. TORSION SWAY BAR OPTIONS As this is a high-performance, no-compromise system, it is highly recommended to upgrade the sway bar with Carli's Torsion Sway Bar, but extended end links are optional, and Full Progressive Leaf Springs are standard. The Carli Torsion Sway Bar removes the entire factory sway bar assembly replacing it with a torsion bar supported by fabricated drop brackets and delrin bushings. Fabricated sway bar arms and dual 5/8" FK heim end links round off the package. TORSION SWAY BAR SPECIFICATIONS:Selection of the Torsion Sway Bar Replacement will not Require size selection as the entire sway bar assembly is replaced. We need to know if you have a 10mm or 12mm end link. The way you can verify this is if you take an end wrench and measure the nut that compresses the rubber end link bushing. It will be 10mm if it takes a 15 mm socket and it will be 12mm if it takes an 18mm socket. Please verify before ordering. Easily the best bang for the buck upgrade for ride quality Allows front suspension to move freely without giving up control For trucks with 0-3" of front lift Requires removal of electronic sway bar on Power Wagons Torsion Bar may be black or silver zinc; depends on supply chain availability. NOT requestable. REAR LEAF SPRING OPTIONS The Full Progressive Leaf Pack lift the rear 1.5-2" by replacing the entire factory leaf spring assembly increasing travel and drastically increasing comfort throughout the entire usable travel stroke at the cost of a 15% payload reduction from a standard 2500. This payload reduction can be supplemented back to factory 3500 SRW capacity with the addition of the Long Travel Airbags for the best of both worlds; ride quality and payload capacity/load control. STANDARD FULL PROGRESSIVE LEAF SPRING KIT SPECIFICATIONS: 2" rear lift maintains a slight rear-height stance with Carli 3" systems Softens initial spring rate at ride height Minimizes axle wrap / wheel hop Reduces payload to light 3/4 ton capacity Capable of 15" of suspension travel with factory shackle Fits 4" axle tube HEAVY DUTY FULL PROGRESSIVE LEAF SPRING KIT SPECIFICATIONS: 2" rear lift maintains slight rear-height stance with Carli 3" systems Softens initial spring rate at ride height Minimizes axle wrap / wheel hop Designed for those with 1,500 lbs in bed at all times Capable of 15" of suspension travel with factory shackle fits 4.0" axle tube ADJUSTABLE TRACK BAR When lifting the front end of a straight-axle truck, the front axle is pulled off-center unless the proper linkages are addressed. Three inches of front lift equates to an axle shifted toward the driver's side 3/4" and back toward the cab 1/2". This system includes an Adjustable Track Bar to push the axle back toward the passenger side and provide a stronger link with less deflection for the lifted application. WHEEL AND TIRE FITMENT 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. IMPORTANT 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. 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.. 2013 2500 APPLICATION: This kit will NOT fit a 2013 2500 as the driver's side rear shock mounts do not fit the 2013 models. Further, there is clearance issues between the shock tower and A/C lines due to the reconfiguration of the 2013 models. NO LEAF SPRING OPTION NOTES:Diesel Power Products and Carli strongly suggest the use of either options available. These options are designed to work flawlessly with the rest of your kit and, are the best way to go. However, we understand you may already have the necessary provisions and/or products to use with this kit so we give you the option to not include any leaf spring provisions. NO SWAY BAR OPTION NOTES:Diesel Power Products and Carli strongly suggest the use of either options available. These options are designed to work flawlessly with the rest of your kit and, are the best way to go. However, we understand you may already have the necessary provisions and/or products to use with this kit so we give you the option to not include any sway bar drop or Torsion Sway Bar provisions.

The first system featuring King Off Road 2.5 Race Shocks and Carli's first premier suspension kit. The Performance 2.5 has been around since day one and, naturally, has been through the longest refinement period of any Carli system. Sporting a plush street drive that will give you a "car like" feel, while still letting you pound some humps in the dirt. The first seasons chasing and running support in Baja were done using the Performance 2.5 system on Carli's own Dodge Ram trucks.

CARLI'S SIGNATURE LONG ARM SYSTEM

The Performance 2.5 System is just another example of Carli's unwillingness to cut a single corner. Sure, they could have included short control arms, and a minipack out back, but they knew the capabilities of the shocks surpassed some of these items and that ultimately the performance of the suspension would not be fully utilized unless other upgrades were standard equipment to the system. That's why this kit is treated to Carli's signature Long Arm System and Full Progressive Rear Springs along with plenty of other high end components. The Performance 2.5 will do just about anything you can fathom, whether its nailing a whoop section or delivering you the most controlled and comfortable ride on your commute to work.

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 the 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.

SLIDE OVER DESIGN SHOCK TOWER

To take advantage of the Long Arm's capability, Carli has 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 and 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. The combination of the long arm system's 6.25" tall tower and 1" bump drop allows for the 12" travel shock and shifts the front axle's operating range down 1"; the result, 3" more down-travel when compared to a short-arm system only sacrificing 1" of up-travel. This is a far more balanced setup spec'd with 6" of up travel and 6" of down-travel ensuring the front end maintains contact over rough terrain.

CARLI TUNED LONG TRAVEL 2.5" KING SHOCKS

This system boasts Carli specific, blueprinted, Long-Travel King 2.5" shocks on all four corners. For the Long Arm system, Carli designed a second, off-road oriented 5-Port custom piston opposed to the 3-Ports in a short-arm Pintop 2.5" System. This piston and long arm tuning profile alters flow of the pressurized shock oil displacing a wider surface area of the tuning shims to increase bottom-out on sharp hits while providing a predictable, comfortable street ride. ALL of Carli's King shocks are treated to 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 is far less likely to 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.

Your truck will sit 3"-3.25" higher in the front (year/cab configuration dependent) with 70% more suspension travel than the factory platform thanks to the taller, linear rate coil springs. These systems require the extended travel capability of the linear spring as the free-height of the multi-rate coils was too short to reach the droop potential.

TORSION SWAY BAR OPTIONS

As this is a high-performance, no-compromise system, it is highly recommended to upgrade the sway bar with Carli's Torsion Sway Bar, but extended end links are optional, and Full Progressive Leaf Springs are standard. The Carli Torsion Sway Bar removes the entire factory sway bar assembly replacing it with a torsion bar supported by fabricated drop brackets and delrin bushings. Fabricated sway bar arms and dual 5/8" FK heim end links round off the package.

TORSION SWAY BAR SPECIFICATIONS:
Selection of the Torsion Sway Bar Replacement will not Require size selection as the entire sway bar assembly is replaced. We need to know if you have a 10mm or 12mm end link. The way you can verify this is if you take an end wrench and measure the nut that compresses the rubber end link bushing. It will be 10mm if it takes a 15 mm socket and it will be 12mm if it takes an 18mm socket. Please verify before ordering.
  • Easily the best bang for the buck upgrade for ride quality
  • Allows front suspension to move freely without giving up control
  • For trucks with 0-3" of front lift
  • Requires removal of electronic sway bar on Power Wagons
  • Torsion Bar may be black or silver zinc; depends on supply chain availability. NOT requestable.

REAR LEAF SPRING OPTIONS

The Full Progressive Leaf Pack lift the rear 1.5-2" by replacing the entire factory leaf spring assembly increasing travel and drastically increasing comfort throughout the entire usable travel stroke at the cost of a 15% payload reduction from a standard 2500. This payload reduction can be supplemented back to factory 3500 SRW capacity with the addition of the Long Travel Airbags for the best of both worlds; ride quality and payload capacity/load control.

STANDARD FULL PROGRESSIVE LEAF SPRING KIT SPECIFICATIONS:
  • 2" rear lift maintains a slight rear-height stance with Carli 3" systems
  • Softens initial spring rate at ride height
  • Minimizes axle wrap / wheel hop
  • Reduces payload to light 3/4 ton capacity
  • Capable of 15" of suspension travel with factory shackle
  • Fits 4" axle tube
HEAVY DUTY FULL PROGRESSIVE LEAF SPRING KIT SPECIFICATIONS:
  • 2" rear lift maintains slight rear-height stance with Carli 3" systems
  • Softens initial spring rate at ride height
  • Minimizes axle wrap / wheel hop
  • Designed for those with 1,500 lbs in bed at all times
  • Capable of 15" of suspension travel with factory shackle fits 4.0" axle tube

ADJUSTABLE TRACK BAR

When lifting the front end of a straight-axle truck, the front axle is pulled off-center unless the proper linkages are addressed. Three inches of front lift equates to an axle shifted toward the driver's side 3/4" and back toward the cab 1/2". This system includes an Adjustable Track Bar to push the axle back toward the passenger side and provide a stronger link with less deflection for the lifted application.

WHEEL AND TIRE FITMENT

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.

IMPORTANT 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.
  • 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..
  • 2013 2500 APPLICATION: This kit will NOT fit a 2013 2500 as the driver's side rear shock mounts do not fit the 2013 models. Further, there is clearance issues between the shock tower and A/C lines due to the reconfiguration of the 2013 models.
NO LEAF SPRING OPTION NOTES:
  • Diesel Power Products and Carli strongly suggest the use of either options available. These options are designed to work flawlessly with the rest of your kit and, are the best way to go. However, we understand you may already have the necessary provisions and/or products to use with this kit so we give you the option to not include any leaf spring provisions.
NO SWAY BAR OPTION NOTES:
  • Diesel Power Products and Carli strongly suggest the use of either options available. These options are designed to work flawlessly with the rest of your kit and, are the best way to go. However, we understand you may already have the necessary provisions and/or products to use with this kit so we give you the option to not include any sway bar drop or Torsion Sway Bar provisions.
QUICK SPECS:
  • Shock Diameter: 2.5"
  • Front Lift Height: 3"
  • Rear Lift Height: 1"
  • Tire Size: Up to 37"
  • Front Travel: 12"
  • Rear Travel: 12"
KIT CONTENTS:
  • King 2.5" Piggy Back Reservoir Rear Shocks
  • King 2.5" Remote Reservoir Front Shocks
  • Corrosion Resistant Stainless Steel Shock Shafts
  • Long Arm System
  • Full Replacement Progressive Leaf Springs
  • Multi-Rate Coil Springs
  • Zinc Plated U-Bolts
  • Your Choice of Extended Sway Bar End Links or Torsion Sway Bar
  • Fabricated Shock Towers
  • Limit Straps
  • Adjustable Track Bar
  • High Misalignment Spacers
  • Reservoir Mounts
  • Rear Shock Mounts
About Carli Suspension
CARLI SUSPENSION KITS, SYSTEMS, AND COMPONENTS

Yeah, we know Sage Carli can launch a full sized truck over nearly any obstacle. If you are into Baja racing, everyone knows by now that Carli Suspension is the name to go with. What you may not realize is that Carli has a suspension kit for your needs too. You probably don't care anything about having your expensive truck go air born, but you do want the best performance out of your suspension for your application. Carli Starter and Commuter 2.0 systems are designed to give you the best possible street manners compared to any other system on the market while providing ample room for the larger tires you want. Potholes disappear, you find yourself building speed on corners and washboard, and that's just when you are on the way to work. Now imagine heading out to feed the cows WITHOUT hitting your head on the headliner. Imagine coming back from your hunting trip WITHOUT needing a trip to the chiropractor. Take another look at Carli Suspension. It's not all about Baja. It's about YOUR truck and what you do with it. Stop by, we'll give you a ride and show you what you're missing. Just bring the checkbook and permission from the boss! One ride and you'll be hooked!

CARLI KITS

The entire engineering philosophy behind Carli aims to offer the real world Dodge Ram and Ford SuperDuty a suspension system that drastically increases the street drive of the vehicle while offering incredible off-road characteristics. So far, Sage Carli's suspension systems are the only option available where you don't have to compromise.

Carli products are designed to meet the expectations of both the daily street driver and the most extreme avid off road enthusiast. From the urban streets to the most remote places, Carli products will far exceed all your expectations. The easiest way to put this into perspective is that Carli truly builds suspension systems for the enthusiast....the person who truly LOVES their truck and wants to upgrade it with the most thought out, tasteful upgrades on the market. No, this type of individual isn't going to head to Napa to pickup a new track bar. They're going to research the best possible track bar on the market and go that route. Carli Suspension is truly a brand for enthusiasts, featuring products that are built by enthusiasts. Just watch any of Carli Suspension's videos and you'll understand why they have such a passion for their products.

Stock production trucks are built mainly to keep costs down. From a truck enthusiast's point of view these standards simply are not acceptable. From people looking to get a better ride with a more aggressive stance to people looking to get some serious off road performance, Carli understands the needs of these enthusiasts. This is epitomized by the ever growing list of satisfied customers. Carli Suspensions relentless pursuit of producing the best performing suspension systems is something that can be felt every time a customer drives their truck. Carli wouldnt have it any other way.

CARLI COMPONENTS

You know, its not always about a complete suspension. In fact, some of our best selling Carli products are things like a track bar, Carli ball joints, shocks, coil springs, and more. Maybe you've got a clunk in your front end that has been nailed down to being from a worn out track bar bushing and you did your research (mentioned above) and found out that the best track bar for your Ram or Ford is from Carli, so you buy that one. Or maybe you want a better ride, but only want to replace the coil springs for now. No problem. Sure, Carli is centered around their entire systems, but nearly all of their components can be used interchangeably on a stock height truck or one with an existing leveling or lift kit. We do our best to make note of any fitment requirements on each product page, but if you have any questions, please feel free to reach out and ask, we're happy to help.

Here at Diesel Power Products we only want to sell the best and lets face it, the stock Ram and Ford suspension needs help. Your stock suspension system is designed to be adequate and nothing more. Carli not only makes the ride of your truck better, it makes it safer. Whether you are towing a trailer on the interstate or doing a little off-road adventure, we will attest that you'll be more than satisfied by upgrading to Carli.

Video
Diesel Talk | Carli Suspension Kits Explained
Tyler from Carli Suspension sits down with Tyler from Diesel Power Products to explain the differences between Carli’s various suspension kits. From the entry-level Commuter system to the mid-tier Backcountry, and all the way to the high-performance Dominator kit, youll get a detailed look at what each option offers. Whether youre after improved street comfort, off-road capability, or a suspension that can handle it all, this breakdown will help you choose the right kit for your build.
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