Ford Authority

Understanding The Revised Shelby GT350 Suspension Tuning

We already told you how Ford worked closely with Michelin to conceive an all-new tire package for the 2019 Mustang Shelby GT350, but the updates go beyond the rubber. In fact, because the new tires deliver so much grip, Ford engineers had to entirely recalibrate the new Shelby GT350 suspension and aerodynamic setup.

Let’s take a deep dive and observe what was done to improve the pony car’s cornering and braking abilities at the track.

Since the new Pilot Sport Cup 2 tire is observably stickier than the Pilot Super Sport rubber it replaces, the rear of the car – where all the engine’s power is sent – had to be softened up. The updates to the rear suspension work in concert with the all-new carbon fiber wing and the optional Gurney flap, both of which reduce drag and add rear-end downforce. The 2019 Mustang Shelby GT350 also gains the rear sway bar from the GT350R as standard to stiffen up the chassis.

By softening the rear spring rate by 6 percent, Ford engineers were able to increase the tire’s mechanical grip. There’s also less bouncing under hard acceleration when driven over uneven terrain, hence improving the tire’s contact patch.

Such a configuration also favors oversteer. Since the rear of the car is now significantly more squatted down due to the new wing, the new tire’s improved grip, and the chassis’ increased rigidity, the engineers could allow a bit more body roll from the rear suspension. The result is that the driver has more control over what the rear tires are doing upon corner exit. This increases driver confidence, as power can be applied sooner when exiting a corner, leading to quicker lap times.

Meanwhile, the front of the car was stiffened 10 percent to compensate for the softer rear. This improves the Mustang Shelby GT350’s braking stability at high speeds, something we noticed as we stepped on the enormous Brembo brakes at the end of Michigan’s M1 back straight.

Of course, the changes applied to the new Shelby GT350’s suspension only work with the proper tire compound and aerodynamic setup. One cannot work without the other. Remove that fancy wing, change those tires, and suddenly, that rear end becomes unmanageable, especially with more than 500 horsepower on tap.

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  1. daryl

    it might be ok to understand the suspension, but what I cant understand is why in 2019, Ford is using old 2015 mustang headlights and tail lights on their cars, now the future Mustang GT500 is going down the same old fashion path using 2015 Mustang headlights and front fenders, NO wonder Ford cant sell any cars, did someone at Ford make a mistake and produce six billion 2015 headlights by mistake, and now we are going to see them all through the next decade, wake up Ford, use the gorgeous 2018 headlights, get with it Ford, update your cars and they might sell.

    1. Alex Luft

      If you want to understand why the GT350 and GT500 don’t have the new Mustang face, then read this:

      Ultimately, given the poor reception of the 2018 MY Mustang facelift, the fact that the Shelby models did not get it is a net positive. The 2018 headlights are in no way “gorgeous”… but more like a “meh”.

      PS: Ford can’t sell any cars? They can certainly sell them… and were selling them… but the people in charge of making money on them failed miserably at doing so.

      PPS: six billion 2015 headlights? Now there’s an exaggeration.

      PPPS: you say that “they might sell” if the cars were updated… while Ford makes the best-selling car in the mainstream sports car segment with the Mustang. Another exaggeration.


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