It is going to depend on the engine / transmission.
Look on the sticker on the door frame.
tow capacity is 7500 lbs
The 2003 Toyota Tundra has 24 valves.
The 2003 Toyota Tundra has a V6 engine.
The 2003 Toyota Tundra is a gas-powered vehicle.
The 2003 Toyota Tundra has a 5-speed manual.
The 2003 Toyota Tundra is 18 ft. 1.5 in. (217.5 in.) long.
The 2003 Toyota Tundra runs on regular unleaded.
The 2003 Toyota Tundra has double overhead cam (DOHC).
The height of the 2003 Toyota Tundra is 5 ft. 10.5 in. (70.5 in.).
The 2003 Toyota Tundra's turning circle is 44.9 ft..
The rear track of the 2003 Toyota Tundra is 5 ft. 4.9 in. (64.9 in.).
The front track of the 2003 Toyota Tundra is 5 ft. 6.2 in. (66.2 in.).