Stock stamped steel trailing arms with soft rubber bushings deflect under load and absorb power instead of transferring it to the tires. BMR’s rod ended, single-adjustable trailing arms for Challengers are manufactured from heavy-duty 1-inch DOM steel tubing. This design gives you a strong trailing arm that greatly improves performance. Trailing arms feature zinc-plated two-piece, X-series, heat-treated, chrome-moly, self-lubricating, PTFE-lined rod ends. It also features 304 stainless steel, custom designed rod end spacers. This design provides reduced deflection, increased articulation, and an all-around improvement in performance.