Double-Ended Tools Disconnect Fuel Lines on Many Chrysler, Ford, and GM Vehicles. The 1/2" side on the 63710 is especially useful for removing the fuel supply line from the sending unit on 2001 and...
Both ends required due to limited clearance between fuel line connecter end and fuel rail. Services Transit 2.0L, 3.5 GTDI, 6.2L Boss engines. 5/16" x 3/8".