`78-`96 GM B body
UMI rear lower control arms
The converging 4 link rear suspension on many GM cars and all Fox body Mustangs have a problem. Their geometry requires the arms to flex to avoid binding up the suspension but this same flex can also lead to wheel hop and poor handling. Until now you had two choices:
Use the flexible stock arms, or use beefy steel arms with hard bushings that helped the wheel hop but caused the suspension to bind in torsion causing erratic handling. Some attempts have been made to fix this problem with heim ends or steel bearings but they can transmit a lot of road noise to the body and are open to water and road grit so they wear much faster than stock components.
Now there's no more need to compromise! The UMI arms feature dual Roto-Joints to eliminate non linear binding issues.
All lower arms are direct fit, feature mounts for a factory type sway bar if required and are protected by a beautiful glossy black, or red powder coat finish.