By: Mark Bono
Rumors have been swirling around about GM’s half-ton trucks gaining an eight-speed automatic transmission for the 2015 model year. We were let down after the release of the 2015 Order Guide for the Silverado and Sierra did not contain any mention of them gaining GM’s new eight-speed automatic. We naturally thought the full-size twins will be soldiering on for another year with the six-speed automatic transmission.
Today though we have received two pictures from an anonymous source confirming that the 2015 full-size trucks will be getting the new eight-speed transmission with a catch….. Just like when GM transitioned from the four-speed automatic to the six-speed automatic back in 2008, the top engine will the only one gaining the new transmission. The 4.3 liter V-6 and 5.3 liter V-8 will soldier on with the six-speed automatic while the 6.2 liter V-8 will be paired with the new eight-speed transmission.
GM offers the 6.2-liter V-8 in Double and Crew Cab half-tons with the max trailering package, Silverado High Country and Sierra Denali. In all half-ton applicaitons the engine generates 420 horsepower and 460 foot-pounds of torque.
The new eight speed is apparently the 8L90, which recently debuted in the 2015 Corvette Z06 and will be offered in the 2015 Corvette Stingray as well. The EcoTec3 6.2 liter V-8 in the half-tons is a derivative of the 6.2-liter V-8 that powers the Corvette Stingray. Although no details are known, we can likely expect incremental increases in both performance and fuel economy thanks to the two new cogs.
By Steven J. Ewing
As lovers of fast driving, we at Autoblog normally try to stay as far away from police pursuit vehicles as possible. But in reality, the way automakers design purpose-built police vehicles is indeed worth a closer look. If we’re going to task the boys and gals in blue with keeping us safe on the streets, they need to be given the best tools possible for the job. And while a lot of that comes down to their own equipment, the police cruisers themselves play a hugely important role in all of this.
Chevrolet has long offered police vehicles, from Caprice old and new, to various Impala and Tahoe models. That last one is a particularly newsy topic right now, as Chevy recently unveiled its all-new 2015 Tahoe SUV (complete with its Suburban, GMC Yukon and Cadillac Escalade siblings). At last week’s Chicago Auto Show, Chevy went a step further, giving us a closer look at Tahoe’s brand-new police-spec version.
In the video below, Autoblog West Coast Editor Michael Harley talks with Chevy product specialist Scott Vandekerckhove, who gives a full tour of what’s new with the Bowtie’s biggest cruiser. We check out what’s up front, under the hood, and out back. Scroll down for the full video, and just hope it’s the closest you’ll actually ever have to get to sitting inside one of these bad boys.
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For more information, visit the official Chevrolet SS Sedan website: http://www.chevrolet.com/ss-sports-sedan.html