BMR 08-17 Challenger Non-Adj. Upper Trailing Arms (Polyurethane) - RedLaunching harder, reducing wheel hop, and adding cornering consistency to your 2008 newer Dodge Challenger is easy with upper trailing arms from BMR Suspension. Stock stamped steel trailing arms with soft rubber bushings deflect under load and absorb power instead of transferring it to the tires. BMRs polyurethane, non adjustable trailing arms for Challengers (UTA110) are manufactured from heavy duty CNC laser cut, CNC formed 3 16 inch steel plate.