Tundra’s are freaking awesome.
But your year/engine of Ford is proving to be quite reliable.
I don’t think you gain anything trading in for a Tundra. I think it will cost you a lot more than if you had a couple of repairs on your ford.
Taxes, tires. Plus the resale value is crazy on Toyotas so that’s a pro for you selling it but a con for buying it.
Gas mileage is probably better on your current truck.
If you do get the Tundra you have to get the 38 gallons gas tank.