5″ Radius Arm Lift Kit w/Coil Spacers & Front Dirt Logic 2.25 Resi Shocks & Rear Dirt Logic 2.25 Shocks – K3180DL



2019-22 Ram 2500 4WD

Improving on the Ram suspension design, Fabtech offers their trademark Radius Arms in a complete lift kit system. These exclusive tubular Radius Arms have recognizable dimple die side plates for superior strength and a signature of quality. The rugged Arms provide increased caster for use with oversized tires and lifted suspension heights.

The factory front Ram coil spring has a noticeable bow to it with a very high spring rate for the weight rating of the vehicle. This creates a harsh ride with a nervous feel from the suspension. To correct this, Fabtech uses a straight vertical coil design. In order to utilize a straight coil, the lower spring seat mount must be modified via a Fabtech patented angular spring mount that attaches to the stock seat. This eliminates the bow to the spring and allows for a lower rate with a straight coil for a supple ride without sacrificing load carrying capacity. A Fabtech exclusive.

For the rear, this lift kit has the perfect balance between ride quality and retaining the factory carrying capacity. By utilizing a dual rate spring design, it provides a good highway ride in the first stage of compression and then the second stage handles heavy loads.

Heavy duty 1/4" thick steel front and rear Track Bar drop brackets center the axles under the vehicle with the new ride height.

A Fabtech innovation with this Ram lift kit is the heavy duty steel front bump extensions. They retain the stock bump stop cushions for progressive damping and will not allow the suspension to over travel. This is a superior feature compared to replacement long length urethane bump stops as they can push out under harsh conditions.


  • Fabtech’s trademark Radius Arms with recognizable dimple die side plates providing additional strength and increased caster
  • Front straight Coil Springs with Fabtech’s patented angled mounts for smooth ride
  • Heavy duty Track Bar drop brackets center the axles under vehicle for proper tracking
  • Dual rate rear coil springs for factory load capacity and a smooth ride
  • Includes Free 5 year 60,000 mile Powertrain warranty

Radius Arm

Tubular construction with dimple die side plates for superior strength. Arms are offset to allow for full turning radius with wide tires. Fabtech Radius Arms have 1 degree of caster built in for the increased ride height. Adjustable alignment cams on the Arms allow for an additional 1.5-2 degrees of caster adjustment over stock.

Front Coil Springs and Spring Seats

Patented angular coil spring mounts allow for the installation of a straight coil spring to reduce the factory’s high spring rate. This provides a more compliant ride quality from the spring with no loss of carrying capacity. The coil springs allows for a 2" increase in travel when used with Fabtech shock absorbers.

Rear Coil Springs

rear coil springs utilize a dual rate design that allows for a good highway ride in the first stage of compression while the second stage handles heavy loads.

Track Bar Brackets – Front and Rear

1/4" thick steel bracketry re-positions the factory track bars to center the axles under the vehicle with the increased lift height. Super stout box style brackets are designed to eliminate deflection when the track bars move through their full cycle.

Dropped Pitman Arm

Forged steel construction with high strength material that exceeds the factory specifications. Designed specifically for the Ram to work in conjunction with the factory drag link and Fabtech’s Track Bar bracket for proper steering functionality.

Bump Stop Brackets – Front and Rear

Heavy duty 1/4" thick steel brackets control the travel eliminating over cycling of the suspension. Super strong construction can handle the full compression impact of the Ram 2500.

Sway Bar Links

Extended length sway bar links replace factory links and cycle without binding throughout the increased ride height.

Brake Line Brackets

Repositions the factory brake lines on the axle for the new travel range without having to open the brake system. Keeps factory fluid system intact.

Dirt Logic 2.25 Shocks

Constructed of a stainless steel body with NitroSteel® piston rod for maximum corrosion resistance and durability. Superior ride quality both on and offroad. Excellent damping for offroad use.

Part Numbers

Oty Part # Description
1 FTS23216 Component Box 1
1 FTS23217 Component Box 2
2 FTS801032 Front Dirt Logic 2.25 Resi Shock
2 FTS811042 Rear Dirt Logic 2.25 Shock

  –  California Prop 65 Warning

    20. Does not fit standard cab models.
    42. Will not fit gas motors.
    130. Will not fit factory air suspension.
    208. Does not fit power wagon models.