Universal Products

Synergy Dodge 1500/2500/3500 94-Up Add-A-Leaf Pack

Brand: Synergy Manufacturing
Product Code(s): 8516-01-350 8516-01-400
Shipping Weight: 75.00 lbs
Availability: In Stock
Price: $3,500.00

Available Options

* Add a Leaf:
   - OR -   
Synergy Dodge Add-A-Leaf Pack 1994-Present 1500 Megacab, 2500 / 3500 4x4 Trucks
  • Progressive 5 leaf design replaces the factory overload spring for improved ride quality both on and offroad
  • Eliminates the harsh spring rate ramp up caused by overload engagement 
  • High quality 9/16" E-coated U-bolts, F436 extra thick hard washers and GR8 tall nuts included  
  • Bolt on installation using basic hand tools
  • (2) 8516 Add-a-leaf packs (Single or Dual center pin depending on part number)
  • (2 or 4) 1/2-20 UNF x 6.0" long replacement center pins
  • (4) 9/16-18 UNF x 4.0" or 3.50" x 10-11" long HD E-coated U-bolts (Size varies depending on part number)
  • (8) 9/16-18 UNF GR8 tall nuts
  • (8) 9/16" ASTM F436 hard washer extra thick


Lift Options:

Part #   Description Additional Cost
8516-01-350 94-02 2500 4X4 trucks w/ auto trans & D70 rear end (3.5” axle tube, single center pin) $0.00
8516-01-400 94-02 2500 4x4 trucks w/ manual trans, 3500 4x4 trucks w/ manual or auto & D80 rear end (4.0” axle tube, single center pin) $0.00
8516-02-350 03-Present 2500 / 3500 trucks w/ gas engines & 10.5” AAM rear end (3.5” axle tube, dual center pin) $30.00
8516-02-400 03-Present 2500 / 3500 trucks w/ diesel engines $ 11.5” AAM rear end (4.0” axle tube, dual center pin) $30.00



  • 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.
  • If truck is equipped with square U-bolts that feature an under axle spring clamp, PPM-3127-300 spring plate will be needed to utilize the U-bolts provided in the kit. 


Installation Requires (2-3 Hours):



Ram 1500
Ram 2500
Ram 3500

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