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SKU #: SYN-8516-10 MPN #: 8516-10

Synergy Manufacturing Add-A-Leaf Pack 03-13 Ram 2500 | 03-25 Ram 3500

$535.00
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Description Overview
Improve rear suspension comfort and traction with the Synergy Manufacturing Add-A-Leaf Pack for select 4x4 Ram trucks. Designed to replace the factory overload spring with a progressive five-leaf design, this upgrade helps eliminate the abrupt increase in spring stiffness that occurs when the factory overload engages. The result is a more controlled, predictable ride both on and off the road, making it an excellent option for trucks that see daily driving, trail use, and changing load conditions. It also provides approximately 1 inch of rear lift to help improve your truck’s stance. Engineered for demanding truck applications, the Synergy Add-A-Leaf Pack uses a progressive spring design to provide a smoother transition through suspension travel while maintaining dependable rear suspension performance. The kit includes heavy-duty Grade 8 tall nuts and extra-thick F436 hardened washers for a secure installation. Designed as a bolt-on upgrade, installation can be completed using basic hand tools, although proper supporting hardware is required to ensure a correct fit.

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The Synergy Add-A-Leaf Pack is a 5 leaf design that replaces the factory overload spring, providing 1 inch of lift in the rear.

Fits
2003-2013 Ram 2500 4x4|2003-2012 Ram 3500 4x4
Brand
Synergy Manufacturing
Best for
Improved on and off-road ride quality and better traction
Key features
  • Progressive 5 leaf design
  • Replaces the factory overload spring
  • Eliminates harsh spring rate ramp up from overload engagement
  • More predictable, comfortable ride
  • Better traction
Key specs
  • 5 leaf design
  • 1 inch of lift
Important
Must be run with a Synergy U-Bolt Kit. Removing the factory overload will affect load carrying characteristics, causing more rear squat under heavy loads; an airbag kit is suggested if large loads are frequently hauled.

Summarized by AI from this product’s description and specs. Confirm fitment for your year, make and engine before ordering.

Improve rear suspension comfort and traction with the Synergy Manufacturing Add-A-Leaf Pack for select 4x4 Ram trucks. Designed to replace the factory overload spring with a progressive five-leaf design, this upgrade helps eliminate the abrupt increase in spring stiffness that occurs when the factory overload engages. The result is a more controlled, predictable ride both on and off the road, making it an excellent option for trucks that see daily driving, trail use, and changing load conditions. It also provides approximately 1 inch of rear lift to help improve your truck’s stance.

Engineered for demanding truck applications, the Synergy Add-A-Leaf Pack uses a progressive spring design to provide a smoother transition through suspension travel while maintaining dependable rear suspension performance. The kit includes heavy-duty Grade 8 tall nuts and extra-thick F436 hardened washers for a secure installation. Designed as a bolt-on upgrade, installation can be completed using basic hand tools, although proper supporting hardware is required to ensure a correct fit.

Manuals and Guides
Vehicle Fitment
2003-2013 Ram 2500 4x4|2003-2025 Ram 3500 4x4
WARNING: Cancer & Reproductive Harm - P65Warnings.ca.gov
IMPORTANT NOTES:
  • Must be ran with Synergy U-Bolt Kit
  • The installation of this pack will affect the truck's load carrying characteristics when the factory overload is removed.  The owner will notice more "squat" in the rear when carrying heavy loads.  If large loads are frequently hauled, we suggest adding some form of airbag kit in conjunction with this kit for optimum ride and load carrying characteristics.
About Synergy Manufacturing
SYNERGY SUSPENSION & MORE

Synergy Manufacturing is an automotive aftermarket steering, suspension, and chassis manufacturer based out of San Luis Obispo, California with nearly twenty years of industry experience. Synergy components are predominantly made in the USA and built to withstand offroad abuse, but built in such a way that they complement a daily driver that merely wants bulletproof components under their vehicle, allowing you to truly have your cake and eat it too in terms of strength and comfort. In addition to suspension systems, Synergy also manufactures a complete line of heavy duty steering components, axle upgrades, and other related products that dramatically improve your vehicles on and offroad capability, performance, and appearance.

SYNERGY OFFROAD PARTS

Synergy got their beginnings in producing heavy duty off-road parts predominantly for Jeep Wrangler JK's (and continue to do so), but has since substantially grown their portfolio in both the vehicle applications they support, as well as the types of products being produced. From complete lift kits for your Ford SuperDuty to replacement 3 progressive rate coil springs, track bars, and control arms for your Ram, they've got you covered. You can even build your lift kit one piece at a time, or replace another companys failing, inferior suspension parts to upgrade yours to Synergy! Some of our most popular Synergy Offroad Parts are adjustable track bars, 3" coil springs, steering box braces, and adjustable sway bar end links.

SHOP HERE FOR ALL YOUR SYNERGY MFG PARTS!

Overall, if you are looking for high quality components that will exceed your expectations in terms of performance and durability, you wont be disappointed by choosing Synergy Manufacturing. And to back it up, most Synergy parts come with a Limited-Lifetime Warranty

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