7″ Radius Arm System w/ Dirt Logic 4.0 Resi Coilovers & Dirt Logic Shocks – K3075DL



2014-18 Ram 2500 4WD

Improving on the Ram’s new front suspension design this system includes replacement tubular Radius Arms with Fabtech’s exclusive dimple die side plates for superior strength and a rugged appearance. These new Radius Arms provide increased caster for use with oversized tires and lifted suspension heights.

The system utilizes the factory upper coil bucket with support gussets for superior strength. The lower mounts weld to the axle housing and have cross support gussets for the factory Track Bar bracket.

The Dirt Logic 4.0 Resi Coilovers features a stainless steel body for maximum corrosion resistance with a remote billet aluminum reservoir. These Dirt Logic 4.0’s provide a super smooth highway ride with outstanding offroad damping for rough terrain. Heavy duty 1/4″ thick steel front Track Bar drop bracket centers the axle under the vehicle with the new ride height.

A Fabtech innovation on this system is the steel front bump extensions. They will not blow out like extra long urethane bump stops found in other aftermarket suspensions. No chance of spring and shock damage with the Fabtech steel extensions.

The rear suspension receives dual rate coil springs with bump stop extensions.


  • Front Dirt Logic 4.0 Resi Coilovers
  • Fabtech Radius Arms
  • Front & Rear Steel Bump Stop Extensions
  • Front & Rear Track Bar Brackets
  • Rear Dual Rate Coil Springs

Part Numbers

Oty Part # Description
1 FTS23177 Component Box 1 w/ Dirt Logic SS Shocks
1 FTS23178 Component Box 2
2 FTS835122 Front Dirt Logic 4.0 Resi Coilover

  –  California Prop 65 Warning

    42. Will not fit gas motor.
    208. Does not fit power wagon models.