Fabtech's 6 in. radius arm system for 2018 Ford F‑450/F‑550 4WD Diesel ships with coil springs and Stealth shocks to provide a full suspension upgrade tailored for heavy‑duty applications. The kit includes Fabtech radius arms, trac bar relocation bracket, Pitman arm, sway bar drops, and rear block and U‑bolt kit to support oversized tires and improved suspension geometry for demanding use.
Fabtech 2018 Ford F450/F550 4WD Diesel 6in Rad Arm Sys w/Coils & Stealth