Oil leak between rear iron and rear stat gear -> o-ring on stat gear.
http://www.mazdatrix.com/getprice.as...m=10-555A-0813
Mazda PN: 0813-10-555A
Oil leak between rear stat gear and flywheel / rear counterweight -> rear main seal
http://www.mazdatrix.com/getprice.as...m=10-556A-1668
Mazda PN: 1668-10-556A
This could also be caused by not enough sealant between the rear portion of the e-shaft and flywheel / rear counterweight...
...which could also cause a leak out the back of the e-shaft itself (onto the flywheel contact surface).
-Ted