[vatdevil]

I run Craig's solid diff mounts and yes they do transmit a bit more noise, but not enough to notice over your side pipes. 31 spline is significantly stronger than 28. My setup uses 31 spline bars from DSS attached to inner/outers from factory new 03-04 Cobra half shafts. Drag, road course, auto cross with 600+ ft/lbs on sticky Nittos...no issues.

Also installed the Ford aftermarket cover. Winter plans are to replace the rubber mount it attaches to with delrin.