Universal design allows tool to fit fuel tank lock rings on Ford Chrysler and GM vehicles. Works on 2004 - newer Ford F-150 trucks. 2004 - newer Chrysler / Dodge mini-vans PT Cruiser Dakota Durango. 2004 - newer Chevy 1/2-ton and 3/4-ton trucks. Tool easily removes and installs lock ring on the fuel tank when servicing the fuel pump or fuel sending unit. Used with a 1/2" drive ratchet or breaker bar.