starting to look at trucks
I'm in no hurry, but looking at used (2016 and up) F150's, looking at eng. size and wondering what would be best a 3.5 Ecoboost or a 5.0 L V8 . to pull a 7000lb trailer (TT) I think I"m leaning t...
Forum Discussion
valhalla360 wrote:
I wouldn't get too hung up on rear-end ratios...with the newer 10speed transmissions, the truck can select an appropriate gear to convert HP to torque at the wheels.
PS: If you do want to look at torque, you need to look at the torque curve not just the peak number. A slightly bigger maximum torque doesn't prove anything if the engine can't get up to the RPM where it generates the max.
Kind of proved my point. The lower rear gear gets you to the needed RPM for max torque.
As for the other statement about the 10 speed. Ford's engineers determined the tow capacity is always higher with the lower geared rear. No matter how many gears it has. A truck will NEVER be rated for max tow, with a 3.15 rear gear. It's in the book, and is no more than physics.
