[LMH]

Ok, now I understand more! I do disagree on one point eschaider is making and that’s the Mustang Cobra differential. 2003 and 2004 Cobra IRS differential is aluminum, super strong and not the same as other production IRS units. It’s what I had on my Hurricane. 31 spline CV joints while 28 is standard. Very stout if you abandon the stock rear cover for an aftermarket one. Otherwise, switching it is an excellent idea!
Larry