I always get a kick hearing "military grade" in their commercials. There is no such thing.
Not sure about the Ford but the Tundra gvwr is 7200lbs, fawr is 4000lbs and rawr is 4150lbs. The axles are actually d rated for their light truck application, but I believe still higher than most.
Probably been mentioned already but the Tundra simply doesn't match up well with Fords F150 higher gvwr and rawr size platforms.
7550/7600/7700/7850/8200 GVWR.
4550/4800 RAWR.
The F150HD 7850 up to 8200 GVWR and the 4800 RAWR with load E tires and wheels. Some have "GVWR based payloads" in the 3000+ lb range.
For a comparo the 1500 GM with the NHT package is a 7600 GVWR and 4300 RAWR. Now choose the 6.2 engine option and the NHT option that comes with a 3.73 axle ratio/8 speed tranny and with a 420 hp at 460 ft pounds. And this 1/2 ton muscle truck has a 11700 lb tow rating.
The Ram...its lost way back down the low GVWR/RAWR road.
Tundra is a good truck for what it is. I would 'spect Toyota will upgrade GVWR and higher axle rating to match the top guns in the 1/2 ton truck world.