2001 Mustang Cobra IRS on MK IV Roadster

[rrisdon]

I recently purchased a 2001 Mustang Cobra at salvage for a MK IV build. Does anyone have experience modifying the independent rear suspension to fit a MK IV roadster?

[Gordon Levy]

You will need to use T-bird/Mark VIII spindles. The Cobra spindle will not work. The other thing you need to contend with is the carrier is 31 spline and the haft shafts the FFR sends with the kit are 28.