Fits 8.8" rear axle.   Fits 1986-1995 Mustang LX, GT w/ 5.0 V8, 1996-2014 Mustang GT, 1993-1998 Mustang Cobra, & 2003-2004 Mustang Mach 1, 2007-2014 Shelby GT500 Mustang.   Does NOT fit 2013-2014 Shelby GT500 w/Track Pack option because...

Ford Performance's specially formulated Friction Modifier is a must-have for any gear swaps or fluid flushes on your foxbody Mustang! The purpose of this modifier is to make your gears operate smoothly and quietly. This...