I bought my tundra used, looking to hook up a brake controller, no idea if i have the "towing package" or not.
Err, um, nope, not a good indicator. All '00-'02 Tundras had the external tranny cooler...whether or not they also had what passed for a tow package in those model years. It wasn't until the '03 models that that only the ones with the tow package got the external tranny cooler. But the '03 and newer with the tow package also got the 7 pin connector at the hitch.Check to see if you have a transmission cooler. It is a square, black looking object that will be in-front of the radiator. If you do, then you have the tow package for the 00-02 Tundras.