Compresses Valve Springs Without Having To Remove The Head. Forged Construction With 3/8" Square Drive And Built-In Jaws. Services 1991 And Up Ford 4.6L, 2-Valve, V-8 Engines.Compresses Valve Springs...
See 6684 demonstration further down in this description. Once you see how the tool works it's simple to use. The Ford 3-Valve Spring Compressor is for 4.6, 5.4 and 6.8 3V engines, See application...