2015 GM Trucks will get 8 speed Transmission

N-Trouble wrote:
And 10 even better than that... Then 12....

It starts to become a matter of diminishing returns at some point. Personally I wouldn't want a tranny that's always hunting between gears as that is what an 8-speed is going to do. 6-speeds seem more than enough to me but what do I know

While I agree that there should be a ceiling for optimal number of gears, you've got it backwards when it comes "hunting".

A transmission hunts when there are too FEW ratios. Imagine a 2 speed Powerglide - if you tow with it, it'll always be shifting from 1st to 2nd and back to 1st on hills, because you're rarely in the sweet-spot of either gear (only 2 sweet spots).

With an 8 speed, there are 8 sweet spots. It may shift more, but as an owner, I can tell you it NEVER hunts. It'll shift until you're in the perfect gear, at the perfect throttle position, then hold it until conditions change (hill is over, etc).