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Synergy 2003-2013 Dodge Ram 1500 / 2500 / 3500 Long Arm Upgrade Kit

Part #: 8580-04
Weight: 80 lbs
  • MSRP: $2145.00
Purchase through our Dealer Network.
Northridge4x4 4 Wheel Parts QUADRATEC
SDHQ ORW - Off Road Warehouse CJC Offroad Top Tier Suspensions

*Not all products are available from each dealer.
For a complete list, including international dealers, click here.

  • Weight
    80 lbs
  • SKU

The Synergy Long Arm Kit is designed to improve your trucks suspension geometry while off-roading. Shorter control arm angles are hard on a vehicle’s suspension components which leads to poor vehicle handling, limited suspension travel and an overall bumpy ride as the shocks produce a choppy movement as you drive. By using the Synergy long arm kit an better angle is achieved, which offers more range of motion and doesn’t put undue stress on the truck’s suspension components. 


  • 2006-2008 Dodge Ram 1500 Megacab 4x4
  • 2003-2013 Dodge Ram 2500 4x4 
  • 2003-2013.5 Dodge Ram 3500 4x4
  • Warning: 2013 Dodge Ram 3500's were a split year for production. If your truck has radius arms use Dodge Ram 2014+ pages


  • The Synergy Long Arm kit was designed and engineered from the ground up using a synergistic approach to maximize the Dodge 4x4 truck's on & off road performance
  • Long arm kit was designed using OEM CAD files for a perfect fitment and enhanced vehicle drivability
  • Kit can be installed on anything from a completely stock truck to a 6" lift and 12" stroke 3.0" diameter shocks.


  • Lower control arms are manufactured from high quality crush resistant 2.0" X .250 Wall 1026 DOM tubing
  • Upper control arms are manufactured from high quality 1.75 x .188 Wall 1026 DOM tubing
  • Suspension components feature an abrasion-resistant powder coat finish for maximum durability and corrosion resistance
  • Synergy double adjuster sleeve & pinch bolt assembly allows for easy adjustment of control arms without removal from vehicle to provide for easy, perfectly adjusted alignments 
  • Synergy Dual Durometer Teflon lined bushings are assembled in control arm assemblies for extended performance & minimized road vibration
  • 100% bolt on components assures an easy, trouble free installation with the use of basic hand tools


  • 8581 - Long Arm Bracket (Pair)
  • 8583 - Front Lower Control Arms (Pair)
  • 8585 - Front Upper Control Arms (Pair)


  • To prevent front tires from rubbing the control arms at full steering lock, we recommend the following wheel/tire combinations:
    • Most* 37 inch tires - wheels must have no more than 4.5 inches of backspacing
    • Most* 40 inch tires - wheels must have no more than 3.75 inches of backspacing
    • * Same size tires will dimensionally vary from manufacturer to manufacturer.
  • 8565 Cam Bolt Eliminators recommended for increased strength and extended bushing life
  • Upgrading to long arms requires removal of the stock control arm brackets at the frame

pdf-icon.gifInstallation Instructions

How To: Synergy Long-Arm Conversion for Heavy-Duty Rams, by Fred Williams
How To: Synergy Long-Arm Conversion for Heavy-Duty Rams, by Fred Williams

WARNING: Operating, servicing and maintaining a passenger vehicle or off-road vehicle can expose you to chemicals including engine exhaust, carbon monoxide, phthalates, and lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. To minimize exposure, avoid breathing exhaust, do not idle the engine except as necessary, service your vehicle in a well-ventilated area and wear gloves or wash your hands frequently when servicing your vehicle.
For more information go to www.P65Warnings.ca.gov