2015 Chevrolet and GMC pickups get an 8-speed automatic transmission as standard

Article by Christian A., on July 21, 2014

General Motors will make Hydra-Matic 8L90 – a new eight-speed automatic transmission – as standard on some 2015 Chevrolet Silverado, GMC Sierra and GMC Yukon Denali/Yukon XL Denali models powered by a 6.2-liter EcoTec3 V-8 engine.

The new gearbox replaces the Hydra-Matic 6L80 six-speed automatic transmission in the trucks. Both gearboxes are produced at GM’s transmission plant in Toledo, Ohio. According to GM, of the new transmission will commence in the fourth quarter of this year, which means it would be a late introduction on 2015 models.

GM will announce more technical details as well as EPA-estimated fuel economy ratings closer to the date of launch. GM remarked that the Hydra-Matic 8L90 will be around the same size and weight as the Hydra-Matic 6L80.

The new transmission, however, provides a higher first gear ratio for towing or hauling heavier loads. Hydra-Matic 8L90 also provides lower rear-axle ratios for reduced engine revolution speed on the highway.

The 6.2-liter EcoTec3 V-8 engine the powers some of GM’s trucks provides up to 420 hp of output and 460 pounds-feet of torque. The engine features an SAE trailer rating of 12,000 pounds. GM is the sole developer of the 8L90. 

The all-new Silverado builds onto Chevy's nine and a half decades of truck traditions, while elevating the standards for full-sized pickup trucks. Included in the many 2014 updates are three new powerful, economic EcoTec3 engines; a more powerful, silent, and comfortable cab; improved steering, suspension, and brakes; inventive solutions for handling storage in the bed, and genuine truck ability for tows and hauls.

Chevy’s customers depend on their trucks for the day-to-day challenges of making a living, handling business, and seeing to their families. The company is dedicated to providing truck consumers the most-sophisticated, best-engineered trucks available.

The 2014 Silverado will be a part of Chevy’s three-truck collection, engineered to allow customers to select the perfect truck for their requirements. It stands with the Silverado 2500 and 3500 HD pickup trucks, the greatest tools for towing and hauling, new for the 2011 model year. A new Colorado midsized pickup is also under development by Chevy. This will offer demonstrated truck ability in a package that is efficient in using space and fuel.

Each detail of the 2014 Silverado 1500 was conceived and engineered to fulfil the demanding needs of full-sized truck consumers and to increase Chevy's reputation for producing the most reliable, most durable full-sized trucks - trucks with a cost of ownership that is the lowest overall.

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