Tag: Automatic

Silverado and Sierra Receive Eight-Speed Automatic Transmissions

VanDevere Chevrolet - Silverado Sierra - Eight 8 Speed Automatic Transmission for 2015
 
http://www.gminsidenews.com/forums/f70/exclusive-half-ton-trucks-get-new-eight-speed-automatic-transmission-172185/
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.

 

GM & Ford: Joint Efforts In New Automatic Transmissions

 
Transmission Ford GM

GM and Ford to Jointly Develop Advanced Automatic Transmissions
2013-04-15

DETROIT – Ford Motor Co. and General Motors Co. have signed an agreement under which both companies will jointly develop an all-new generation of advanced technology 9- and 10-speed automatic transmissions for cars, crossovers, SUVs and trucks.

The new transmissions, to be built in both front- and rear-wheel drive variants, will improve vehicle performance and increase fuel economy.

The collaboration enables both automakers to design, develop, engineer, test, validate and deliver these new transmissions for their vehicles faster and at lower cost than if each company worked independently.

“Engineering teams from GM and Ford have already started initial design work on these new transmissions,” said Jim Lanzon, GM vice president of global transmission engineering. “We expect these new transmissions to raise the standard of technology, performance and quality for our customers while helping drive fuel economy improvements into both companies’ future product portfolios.”