545rfe ?s

Since they use the same Case and are the same size minus the rear extension, has anyone considered using the 66RFE? It's stronger and used behind the 6.4L Hemi. You'd have to use the much bigger spline yoke. It is newer and would have to have the programming for the 6 speed. The torque capability may still be limited by the input shaft but the back half is the same as the 6.7L Cummins used 68RFE.