17 gallon
The Toyota Tacoma is a fairly popular pickup truck. The Tundra may be slightly more popular full-size truck.
Toyota uses metric system.
18 Gallons
The correct chains will match the tire size.
A web site (as of 2014) called tacomaworld.com has a wealth of information and opinions about tires and wheels for the Toyota Tacoma truck.
6.5" speaker. That is what is in the 3.4L and there is no difference.
18 gallon capacity.
The 2013 Toyota Tacoma has a 2.7 L base engine size.
The 2007 Toyota Tacoma has a 2.7 L base engine size.
The 2014 Toyota Tacoma has a 2.7 L base engine size.
The 2004 Toyota Tacoma has a 2.4 L base engine size.
The 2008 Toyota Tacoma has a 2.7 L base engine size.