ITEM NAME:Crankshaft Positioning Tool Timing Chain Set Fit for Ford 4.2L 4.6L 5.4L 6.8L Crankshaft Position Tool Timing Chain Fit for Ford 4.2L 4.6L 5.4L 6.8L SPECIFICATIONS.(3) This crankshaft tool is designed to align and hold the crankshaft of your engine at Top Dead Center (TDC) for correct timing chain installation. Item included: 1 x Crankshaft Position Tool. Compatible With: fit for Ford 1993-newer 4.2L and 4.6L 2-valve engines, 1993-newer 4.6L 4-valve engines, and 1993-newer 5.4L and 6.8L V8 engines.