Originally Posted by Transman
I bet you would find yourself taking it out of OD a lot, I doubt it would handle a grade without lugging. And if a lockup, I’m betting it would drive you right out of the truck.

iagree
newer motors are designed to be fuel efficient at 1500-2000 RPM while developing enough power to push a brick down the road at 75-80+ MPH.
Older motors were not. One may actually find they lose MPG & drivability if they get to far out of the engines efficiency range wink

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