- Jun 27, 2010
- Rochester, NY
I'd expect the trans to skip gears under most conditions, as it's unlikely to need to run through all 10 in sequence. But having more choices of gears could help with the situation of one gear being too tall and another being too low to use on a WOT downshift for passing uphill. As far as the engine, provided bearings, rods, etc. are sized for the power output, displacement shouldn't really affect longevity. The first gen 3.5 EBs seem to be holding up just fine, so I see no reason to worry about an updated version. And now with more power in the lighter aluminum body truck, those things are going to be quick when they're empty.
This isn't really an issue with the boosted small motors. The NA V6s do this as they're a little short on power and need to get the revs up to use the power they do have. The turbo V6 has a pretty flat power curve (and quite a bit of power) and if anything, it's closer in feel to a diesel than the NA V8s are.
Originally Posted By: bullwinkle
Only bad thing is, the small engines beat themselves (& the whole drivetrain) up with the endless shifting-my Cummins can pull a 7K loaded trailer effortlessly up a moderate hill without even unlocking the converter-the Transit can't get into top gear with the same load AT 65 MPH on flat ground, & is perpetually down shifting to try to keep up.