Those Toyota diesel engine specs seem to be about what the Ford/Chevy/Ram 1/2 diesels have and about half what the 3/4 ton diesels have. I guess that’s the reason Toyota doesn’t build a 3/4 ton.
For reference. He’s the info on the Ford 1/2 tons. The diesel has 250 HP and 440 ft lb of torque. https://media.ford.com/content/dam/f...-TechSpecs.pdf
The 3/4 has 475 HP and 1050 ft lb of torque. https://www.ford.com/trucks/super-duty/features/power/