Demon-Xanth
Lifer
Sure, I know about gear boxes, but I'm sure in many sitautions I'd rather have my dad's 460LB/ft of torque leading to a 5.62:1 (iirc) 1st gear and then into the 2.42:1 transfer case ratio and 3.92 front/rear gears letting it idle at approximately 1MPH while putting down enough torque to let it climb up anything it's tires can keep a grip of.
Gearing doesn't come free. Sure, you can have a low 1st and a reasonable cruise, but then you need some wide spacing. And if you have to keep it at a high rev, near the peak to get the required torque, what happens when you need to go faster? Shift? At higher RPMs, an engine will also use more fuel. You're not going to get 20MPG when crawling over rocks at 1MPH on a 3 day trip that spans 30 miles (a la: Rubicon)
Gearing doesn't come free. Sure, you can have a low 1st and a reasonable cruise, but then you need some wide spacing. And if you have to keep it at a high rev, near the peak to get the required torque, what happens when you need to go faster? Shift? At higher RPMs, an engine will also use more fuel. You're not going to get 20MPG when crawling over rocks at 1MPH on a 3 day trip that spans 30 miles (a la: Rubicon)