2013-2014 RAM 3500 4.5″ Radius Arm System | NPA #74

2013-2014 RAM 3500 4.5″ Radius Arm System | NPA #74

2013-2014 RAM 3500 4.5″ Radius Arm System

Fits: 2013-2014 RAM 3500 4WD

Kit: 4.5″ Radius Arm Suspension Lift Kit

Part: #D54

Base Price: $999.95

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View installation instructions

Quick Specs:

Skill Level: 3 of 5

Installation Time: 6 hrs

Max Wheel/Tire Size: 37×12.50 17×9, 18×9, 20×9 w/ 5.625″ backspacing

35×12.50 17×9, 18×9, 20×9 w/ 4.5″ backspacing

  • Progressive rate front coil springs
  • Heavy duty boxed radius arms
  • Levels stance and allows for up to 37″ tires
  • Great ride quality on/off-road
  • 100% Bolt-On

Coldwater, MI—June 17, 2014 Zone Offroad Products continues to expand its lineup for the late model RAM 3500 with new radius arm suspension systems. Engineered to match the brawn of the 2013-2014 RAM 3500 4WD trucks, these systems upgrade the factory front radius arms and offer great ride quality and handling characteristics on road while improving offroad performance and allowing for up to 37″ tires to be installed. The new radius arms are a substantial upgrade to the factory stamped units and improve the ground clearance compared to drop bracket kits. The arms are fully boxed, internally gusseted and designed to bolt in the factory location while correcting the suspension geometry at 4.5” of lift. At the frame mount, the arms utilize extra large, greaseable bushings to isolate road noise and vibrations while the axle mount is designed to retain the factory alignment cams for adjustability. The arms are formed inward to maximize tire clearance and looks great under the new RAM HDs.

In addition to the new radius arms, this system gets its height from 4.5″ progressive rate front coils designed for a smooth ride for unmatched highway and trail performance. Steering correction comes from a forged dropped pitman arm and a heavy duty, fully welded front track bar bracket is used at the frame to recenter the front axle securely under the truck. Rounding out the front of this 4.5″ radius arm system are a pair of polyurethane extended bump stops, brake line relocation brackets, your choice of Zone hydro or Zone nitro shocks at all 4 corners, and all the necessary hardware to complete the install. Out back the rear is lifted using a 3″ block and long u-bolts to level the stance and allow for up to 37″ tires to be installed.

In addition to this kit, Zone offers both single and dual steering stabilizer kits to fit the redesigned front end. Available in both white (3000 series) and black (7000 series) finishes, these steering stabilizer kits are far superior to the factory stabilizer unit and a great addition to help control larger tires on and offroad. The single kits are a stock replacement while the dual kits install stacked in the stock location.

For more info on this 4.5” radius arm system and available accessories for the late model RAM trucks, check out zoneoffroad.com or call (888) 998-9663.

Support Files

Zone Lift Kit
Dodge 4.5″ Radius Arm Lift Kit
Download hi-res image: d54.jpg

Zone Lift Kit
Dodge 4.5″ Lift Kit
Download hi-res image: d54-a.jpg

Zone Lift Kit on Dodge Ram
2013 Ram 3500 w/ Zone 4.5″ Radius Arm Lift Kit
Download hi-res image: d54-d55-installed-front.jpg

Dodge Ram with Zone Lift Kit
Dodge Ram 3500 w/ Zone 4.5″ Lift Kit
Download hi-res image: d54_app01.jpg

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