Read this excerpt from Edmunds.com on the 2014 Toyota Tundra. These trucks will be hitting the lot at
Hendrick Toyota of North Charleston soon
Excerpt from Edmunds.com for the full story
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Better Numbers? Chief Engineer Mike Sweers isn't yet convinced of the long-term durability of these approaches. He also says the Tundra's calibration can deliver in the real world, not just the EPA test dyno. "Under-promise, over-deliver" is how he summarizes it.
Meanwhile, the Big Three play games with axle ratios, usually offering three choices. The lowest serves up the advertised fuel economy while the highest delivers the maximum tow rating. You must choose accordingly when you buy, and it can be tricky to determine the performance of a given truck on the lot.

Toyota avoids this by pairing each engine with a single axle ratio. Any 2014 Tundra equipped with the 4.6-liter V8 can tow between 6,400 and 6,800 pounds depending on cab (double or crew) and drive (4x2 or 4x4) configuration. This year all 5.7-liter Tundras come with the Tow package, so any 4x4 can tow at least 9,500 pounds and any 4x2 can tow 10,000 pounds.
And Toyota is the only manufacturer that uses the
SAE J2807 tow rating procedure that all parties created together. This methodology creates a lower-appearing yet more realistic tow rating, but the Big Three have retreated behind their own secret internal procedures in the interest of maximum marketing flexibility.