2009 Gmc Yukon Denali Sport Utility 4-door 6.2l on 2040-cars

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GM confirms 2015 Silverado, Sierra to get 8-speed automatic

When viewed alongside the next Ford F-150 and the Ram 1500, there is one thing that seems to be missing from the Chevrolet Silverado and GMC Sierra. Where the F-150 will rely on turbocharging and aluminum architecture and the Ram sports an eight-speed automatic and an air suspension, the General Motors twins lack a big, calling-card feature. They're very good, very refined trucks, but one could argue that they're not terribly innovative.
And while it might not be as flashy a feature as air suspension or a lightweight skin, the Silverado and Sierra will get their own eight-speed automatic for 2015, a transmission that will be paired with the company's Ecotec3 6.2-liter V8. The new cogswapper will also find its way into the GMC Yukon Denali, but for now, there's no indication why the Cadillac Escalade, Suburban, Tahoe and standard Yukon are being left out.
According to GM, the new gearbox is about the same size and weight as the current Hydra-Matic 6L80 six-speed. By the time the new powertrain combination enters production late this year, the EPA will almost certainly have gotten around to certifying the vehicles' fuel efficiency. Until then, feel free to speculate. The current Silverado with the 6.2 and six-speed auto returns 14 miles per gallon in the city and 20 on the highway. How much do you think the eight-speed will improve those figures? Scroll down for the official press blast from General Motors, and then head into Comments.

Chevy Silverado, GMC Sierra 4.3-liter EcoTec3 V6 nets 18 mpg city, 24 highway

There is no doubting that fuel economy has become an important factor in the highly competitive fullsize truck market, with the Ford F-150 EcoBoost V6 and Pentastar V6-powered Ram 1500 setting quite a precedent in recent years. Now it's General Motors' turn. The General has just announced that the new base V6 used in the 2014 Chevrolet Silverado and GMC Sierra 1500 models will return an EPA-estimated 18 mpg city and 24 mpg highway in two-wheel drive trim, regardless of cab configuration.
While these figures don't go so far as to earn GM any "best-in-class" fuel economy claims (thanks to the 25-mpg Ram 1500 HFE), this new 4.3L EcoTec3 V6 does edge the F-150 and Toyota Tundra while boasting best-in-class numbers for torque, payload and towing capacity among six-cylinder rivals. This all-new engine produces 285 horsepower and 305 pound-feet of torque, and it gives the 2014 Silverado and Sierra the highest towing rating among standard V6 models with a 7,200-pound towing capacity - besting the Ram by 700 pounds, the base F-150 by 1,100 pounds and coming within 200 pounds of the V8-powered Nissan Titan. Scroll down for the official press releases from Chevrolet and GMC.

2014 Chevrolet Silverado tows in new configurator, microsite

Judging by your continued enthusiastic response to configurator notices, dear reader, you enjoy speccing out new cars as much as we do. Better still, there tends to be even more ways to personalize, configure and bloat theoretical MSRPs on full-size trucks as there are with more ordinary passenger cars. In addition to trim level, engine and transmission choices, truck buyers usually have to specify items like cab configuration, bed length, number of driven axles, tow packages, gear ratios and all sorts of bits and bobs.
That's why we're pleased to see the DIY specification utility for the 2014 Chevrolet Silverado come alive so soon after this week's Detroit Auto Show debut. While the configurator lacks pricing (General Motors hasn't announced numbers yet) and full options, you can still spec out your half-ton rig, and even print it out or email it to your friends. Beyond the configurator, the new model-specific site is pretty cool, too, with various videos and closer looks at the truck's new features.
The new Chevrolet pickup range won't be on dealer lots until sometime this summer, so whether you're a building contractor, an avid sportsman or just a guy or gal that loves full-size trucks, you might want to check out the link below to keep your appetite whetted. If you're more of a Sierra fan, well, it looks like you're going to have to wait a while - GMC hasn't updated its site yet.