I have an 89 mustang gt. It has 3.73 gears and drum brakes in the back. I picked up a 95 3.8 mustang and wanted to swap the rear end so I have disc brakes in the back and keep my gear ratio. From what I understand I can use everything except the pinion yoke as long as the spline count is the same. Has anyone attempted this with this? Anyone know the spline count?