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John Goreham Contributing Writer, GM-Trucks.com 5-15-2019 General Motors has earned the "Automotive Excellence Award" for its innovations on the new generation Silverado. The award was presented to GM by The Steel Market Development Institute (SMDI). The GM Silverado design earned the award for its innovative use of advanced high-strength steel. The all-new 2019 Chevrolet Silverado has a body structure composed of nearly 86 percent steel. That includes ultra-high-strength steel (UHSS), advanced high-strength steel (AHSS) and high strength low alloy (HSLA) materials in the Silverado's cab, bed, and frame. The use of these strong, but lightweight materials contributed to the new Silverado's mass reduction. During the all-new Silverado's launch presentation, GM President Mark Reuss told the audience that the head of a hammer is steel. He added, “I don’t know how much work you’d get done with an aluminum hammer.” Related Story: 2019 Silverado Focus – Fuel Saving Technology - Facts, Specs, Images "Automotive Excellence Award winners use advanced high-strength steel in applications to provide the best value for OEMs and consumers while also improving vehicle performance and sustainability," said Jody Hall, vice president of the automotive market at SMDI. "With automakers shifting their vehicle mix to favor trucks, CUVs and SUVs, new steel grades are leading the way in innovation. The 2019 Silverado is a great example of the capability of these next generation steel grades." The new 2019 Silverado is 450 pounds lighter than the outgoing truck (crew cab V8 models). High strength steel makes the frame stronger, and stiffer, and also lighter. The cargo bed is also a new lighter, stronger steel.

I have a 2015 ltz z71 premium crew cab 1500 and was wandering if changing my lower control arms from the stock aluminum to the cast steel will affect the truck at all. Or if the two control arms are interchangeable below is the pic of what the control arms look like after I changed them out. Still have to add the washer but looks like they will work? Everything fits correctly other than the balljoint bolt length