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2019-2020 RAM 2500 4WD Diesel

4.5" Radius Arm Systems

Zone Offroad D78N
4.5" Radius Arm Systems
4.5" Radius Arm Systems
4.5" Radius Arm Systems
4.5" Radius Arm Systems
4.5" Radius Arm Systems
4.5" Radius Arm Systems
4.5" Radius Arm Systems
4.5" Radius Arm Systems
4.5" Radius Arm Systems
4.5" Radius Arm Systems
4.5" Radius Arm Systems
4.5" Radius Arm Systems
4.5" Radius Arm Systems
4.5" Radius Arm Systems
4.5" Radius Arm Systems
4.5" Radius Arm Systems

Zone Offroad

p/n D78N

Base Price

$1,479.99

Build/Buy This Kit

Availability: In-Stock
This product usually ships within 24 hours and may ship today if ordered before 1pm est.

Quick Specs

View Zone Offroad D78N Instructions

View Product Warranty

Featured Technology & Benefits

  • Heavy duty 1/4" steel, laser cut, internally gusseted radius arms improve strength, offer more ground clearance and correct caster
  • High strength progressive rate front coil springs for a great ride on any terrain
  • F/R HD track bar relocation brackets to correctly position both axles under the truck
  • Forged drop pitman arm to corect steering angles
  • F/R sway bar correction to maintain handling performance
  • HD transmission crossmember and t-case indexing ring to correct front driveline angles
  • Nitro series gas or FOX adventure series IFP gas shocks to improved ride and offroad performance
  • Allows clearance for up to 37" tires

Zone Offroad expands its listings for the late model 2019-2020 RAM 2500 4WD Diesel trucks with new 4.5" radius arm systems that are on the shelf ready to ship. Designed to improve the looks and performance of your new RAM, these kits include everything necessary to correctly lift them for improved offroad capability with room for larger tires while maintaining on-road handling.

Up front these systems use a pair of progressive rate (diesel specific) 4.5" coil springs to provide the extra height and smooth controlled performance in the harshest of terrains. A forged drop pitman arm is supplied to correct steering angles along with a HD bar drop bracket to recenter the front axle. A pair of sway bar drop brackets reposition the OE sway bar for optimal performance along with extended polyurethane bump stops to limit up travel and brake line brackets to allow full droop. To correct the front suspension geometry at the new height, Zone Offroad provides a pair of heavy duty replacement radius arms that bolt directly into the factory location. These new arms are massive upgrade to the factory stamped units, built from 1/4" American made steel, internally gusseted with a lower cam adjustment to dial in front end caster. Also supplied are your choice of Zone nitro-series gas shocks or FOX 2.0 adventure series IFP gas shocks for improved ride and performance.

At 4.5" of lift it is critical to correct the front driveline angle to maintain use of the 4WD. To do this Zone Offroad provides a heavy duty replacement transmission crossmember as well as a transfer case indexing ring to reposition the front driveline output to allow use of the factory drivelines. In the rear of the RAM 2500 kits 2.5" heavy duty coil spacers supplied to level out the stance. These allow you to retain factory ride quality without effecting tow capacity. Extended rear sway bar end links and new bump stops are included to compensate for the lift along with a track bar bracket to recenter the rear axle. Finishing out the rear are a matching set of Zone nitro-series gas shocks or FOX 2.0 adventure series IFP gas shocks. As with all Zone Offroad kits these include Factory Protection Plus for a limited lifetime warranty, ESC System compatibility, and 5-year, 100,000-mile drivetrain warranty. Get the look and the ride you are after with this new 4.5" radius arm system from Zone Offroad.

Important Notes!

  • T-case indexing ring designed for vehicles with 6-bolt design only, will not fit trucks with 8-bolt.
  • Will not fit rear air-ride equipped models
  • Will not fit Power Wagon models
  • Kit designed for diesel models only

This product fits the following applications:

  • 19-20 Dodge/Ram Ram 2500 4WD Diesel
Click to view by year
  • 2019 Dodge/Ram Ram 2500 4WD Diesel
  • 2020 Dodge/Ram Ram 2500 4WD Diesel

Quick Specs

  • Front Lift Height: 4.5″
  • Front Lift Method: Coil Springs
  • Rear Lift Height: 2.5″
  • Rear Lift Method: Coil Spacer
  • Install Time Hrs: 7-8
  • Difficulty Level 1-5: 4
  • Wheel Size: 17x9/18x9/20x9
  • Back Spacing: 5.5″
  • Max Tire Size: 37x12.50
  • Wheel Size: 17x9/18x9/20x9
  • Back Spacing: 4.5″
  • Max Tire Size: 35x12.50

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4.5" Radius Arm Systems

4.5" Radius Arm Systems

4.5" Radius Arm Systems

4.5" Radius Arm Systems

4.5" Radius Arm Systems

4.5" Radius Arm Systems

4.5" Radius Arm Systems

4.5" Radius Arm Systems

4.5" Radius Arm Systems

4.5" Radius Arm Systems

4.5" Radius Arm Systems

4.5" Radius Arm Systems

4.5" Radius Arm Systems

4.5" Radius Arm Systems

4.5" Radius Arm Systems

4.5" Radius Arm Systems

Build Your Kit

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Click/tap thenext to selections and accessories for details if available.

Optional Upgrades & Accessories

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Total base price + selected options $1,479.99

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