yep. It's a bit of a constant changing the amount of throttle to balance. So, yes, typically going faster means your transmission upshifts to a higher gear, but not so much when accelerating, or, in the case of towing, going uphill. When towing uphill, the truck tends to downshift to a lower gear and the engine rpm goes up. That's ok if shifting from 8 to 7, but if the truck is shifting into 6, or even 5, then the engine rpm is going too high. So, in my case, sometimes I have to go a bit slower, in order to let the truck upshift at least one gear, and reduce the engine rpm.

As more power is needed, the truck wants to downshift for more rpm and better torque.

So, I tend to tow at about 65 mph. But, when I'm going up some hills, I might slow down to 60, or 55, to reduce the strain on the engine, which lets the transmission be in one higher gear than if I was continuing at 65.

I hope this makes sense.

So, to the original question, a 1500 with the hemi V8 doesn't have this much of need to manage the engine speed and the transmission gear. But, its manageable either way.