The eight-speed automatic gearbox that will initially see action in the 2015 Chevrolet Corvette should be used more in other vehicles built by General Motors, according to a forecast by IHS Automotive, as obtained by Automotive News. IHS expects GM to produce almost 200,000 eight-speed transmissions – dubbed as 8L90 -- for the Chevrolet Silverado and GMC Sierra pickups annually in the next two years.
In 2015, GM will offer a lower-torque version of 8L90 in some Cadillac ATS and CTS models and the Chevrolet Camaro. IHS likewise expects that the 8L90gearbox to be offered in other models like the Chevrolet Colorado and GMC Can-yon midsize pickups (2016); and the Chevrolet Express and GMC Savana cargo vans (2018).
The carmaker disclosed in August that it would offer 8L90 in some 2015 Silverado and Sierra models, as mated to a 6.2-liter V-8 engine. GM global product chief Mark Reuss divulged last months that transmissions having more gears will be "a big part” of GM’s product lineup.
He remarked that while developing the 8L90 for the Corvette, the carmaker "set some aggressive goals” in terms of how fast the gearbox shifts for better performance, adding that GM is also seeking to reap fuel economy gains in some other product lines.
IHS expects the production volume of the 8L90 to drop starting 2018, and could be replaced by a 10-speed rear-wheel-drive transmission that GM is co-developing with Ford. GM developed and produces the 8L90 at its Toledo, Ohio, powertrain plant