Stabilizer. Bushing. Bar. Insulator.
An isolator that reduces vibrations and wear. Suspension Sway. T - Piece.

Suspension Stabilizer Bar Bushing

Fits F-250 Super Duty, F-350 Super Duty, F-450 Super Duty, F-550 Super Duty

4WD, dual rear wheel.
Stabilizer Bushing - Repair or Replace
A worn or broken stabilizer bushing or sway bar bushing may cause a rapid clank-clank noise when going over bumps. If your 2004 Ford F-550 Super Duty is exhibiting these symptoms, our Ford techs can inspect and repair the problem for you.