RE: 1/5th Smartech 2WD F-150 Big Foot gas??
Smartech is the maker of all of them, fh mt, xtm grizz,big foot, any of them are all smartech, they use fh parts u can find them at tower or ay most online stroes that carry 1/5th, if u need parts look for duratrax firehammer mt, the is name brand for smartech.
some fg parts fit, such as engines, pipes, wheels, tires so on and so fourth.