Fits Ford modular applications 8 bolt crank 1996-2004 4.6L, 2011-17 5.0L, Center hole diameter 1.751?, Internal balance 164 tooth ring gear, Clutch bolt patterns: Ford metric diaphragm 10.5? clutches with 11.375? bolt circle, 8mm-1.25 thread, Ford metric diaphragm 11? clutches with 12.375? bolt circle, 10mm – 1.0 thread, 0.870? thickness crank flange to friction surface.