[JSeery]

The pinion side is not involved, open or closed driveshaft should be totally optional. What's going on is the center section is modified to except latter model axle gears. The new gear part is subsituted for the "gear" portion of an origional axle. Then it can except latter removal axles. The housing ends then must be modified to retain the new axles. I used housing ends that allowed the mounting of 9 inch Ford backing plates and brakes. But it can be setup to retain the original brake hardware. You should be able to use just about any axle and wheel stud setup as long as the splines match the new center gears. Thus the reason in my case to respline the axles.