The rear control arms on 1979-2004 Mustangs have a big job. Not only do the control arms transfer the axle torque to the chassis, the angled upper arms also locate the rear axle during cornering. Over ...

Ford's rear suspension design criteria on the new-for-1979 Mustang was likely: 1) Keep the rear axle between the fenders, and 2) Do it cheap. While the four-link suspension on 1979-2004 Mustangs ...

If you daily drive your '79-'04 Mustang, chances are you've grown accustomed to the clunks and bumps coming from the rear over anything but smooth asphalt. The original design of the Fox chassis rear ...

The 2019 Ram 1500 half-ton pickup from Stellantis was industry’s first use of a hybrid composite/metal upper control arm on a light truck. The innovative design reduces mass and lowers operating ...