Originally Posted by RageOfFury
Chrysler needs to a 7-8 speed tranny as well as direct fuel injection in the Pentastar engine if they want to stay competitive in the powertrain department.
For mileage improvement, yes. Otherwise, the existing 5-speed (6-speed for 2010 V8, but same basic box) designs are -- post-TSB -- capable and proven. And foregoing direct injection means less engine noise and better valve lubrication.
That said, the ZF 8-speed has a solid track record and, being a newer design, will probably be supported for more years. But at some point -- Fiat is already planning 10+ notches for future Chrysler models -- all these added gears are going to be like with some bicycles, when riders have so many gears it becomes fiddly and doesn't really add anything meaningful.