Upper Control Arms can have a significant impact on your Mustang's ride, comfort, handling, acceleration, noise and vibration. Without these J&M Mustang Upper Control Arms, you can have an issue with control arm rotation. With stock upper control arms, the control arm bushing can bind which will raise the rear wheel rate cause sudden, uncontrolled changes in handling.
These J&M Mustang Upper Control Arms have solved the issue of Control Arm binding. J&M Products designed and built a tubular upper control arm which will eliminate the unwanted control arm flex. J&M used round tubing, which is harder to work with, because it has many advantages over square or rectangular tubing. It is stronger in bending, torsion, and lighter than all other tubing.
When it comes to bushings, J&M has solved yet another mystery with their 3 piece Poly-Ball bushing combination. J&M Products incorporates a very hard inner polyurethane ball which is surrounded by soft socket outer cups. This combination allows the bushing to articulate during cornering, but the hard inner ball does not allow deflection during acceleration. Overall, you are left with great traction during acceleration, and bind free cornering.
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