QA1 5253 Adjustable Rear Upper Trailing Arm, Mustang

Keep your tires planted firmly on the ground for improved traction and a more predictable, better handling car with QA1's rear trailing arms. These upper adjustable trailing arms fit 2005-2010 Mustangs and allow easy rear suspension adjustments for optimum handling and traction. Simply loosen the jam nuts and adjust the pinion angle without removing the arms from the vehicle. They replace soft OE differential bushings with polyurethane differential bushings, and they use a spherical ball or rod end assembly with UHMW polyethylene bushings on the chassis end to allow the rea