Long Arm Upgrade Kit

Features:

• Compatible with Synergy Starter and Pre-Run Kits
• Improves on-road and off-road performance
• Fits stock trucks up to 6" lifts
• Designed using OEM CAD files
• Crush-resistant 1026 DOM steel construction
• Includes front upper and lower control arms
• Durable two-stage powder coat finish
• Maintenance-free Dual Durometer Bushings
• Adjustable arms without full removal
• 100% bolt-on installation with hand tools
• Allows precise suspension tuning and alignment
• Cam Bolt Eliminators recommended for extra strength

Take Your Suspension From Good To Serious

If you've already started building your Ram with a Synergy Starter System or Pre-Run Kit, this Long Arm Upgrade is the next step toward unlocking real performance. The Synergy 8580-04 Long Arm Kit takes your front suspension geometry and completely refines it for better road manners and serious off-road capability. You’ll notice improved ride quality, tighter handling, and better articulation when the trail gets unpredictable. Designed specifically for 2003-2013 Ram 2500 and 3500 4WD trucks, this kit also fits lifted setups up to 6 inches, making it a solid option for both weekend wheelers and daily drivers with big goals. The control arms are beefy and built to last, while the bolt-on install keeps the upgrade process simple and shop-friendly. Whether you're chasing more comfort on the highway or better control through rocky terrain, this kit delivers noticeable gains without requiring a complete teardown. It's a smart upgrade that helps your truck handle the way it should.

Engineered To Maximize Strength Fitment And Flex

This long arm system is purpose-built using factory CAD files to ensure a precise fit on your 2003-2013 Dodge Ram 2500 or 3500 4WD. It's designed to bolt directly onto the frame using Synergy's Long Arm Bracket Pair and includes both upper and lower front control arms for a full suspension upgrade. The lower arms use heavy-duty 2.0 x .250 wall 1026 DOM tubing, while the uppers are formed from 1.75 x .188 wall DOM steel, offering excellent crush resistance and durability in demanding conditions. The Dual Durometer Bushings with Teflon surfaces keep everything operating smoothly with no maintenance required. Synergy’s Double Adjuster sleeves make fine-tuning your alignment easier by allowing adjustments without removing the arms from the truck. A tough two-stage powder coat adds long-term corrosion resistance and stands up to the elements. This kit is a true performance enhancement that’s compatible with stock setups or high-travel shock systems up to 12 inches of stroke.

Fitment: 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 Dodge RAM 2500/3500 4WD

Notes:

• Designed as an upgrade for Synergy Starter or Pre-Run Kits
• Compatible with 2003-2013 Ram 2500 and 3500 4WD trucks
• Also fits 2006-2008 Ram 1500 Mega Cab 4WD models
• Works with stock ride height up to 6" lift
• Supports shock setups up to 12" stroke, 3.0" diameter
• Not a full suspension kit, designed as an add-on upgrade
• Requires use of Synergy Long Arm Bracket Pair (included)
• Alignment recommended after installation for proper geometry
• Fully bolt-on system, no welding required
• Cam Bolt Eliminators (8565) recommended for added durability
• Professional installation suggested for best results and safety