Plus shock plates, and then shortening the driveshaft. Then you have to think about brake drums and back plates as they will be different on the 8 3/4. So that usually means bake cylinders, shoes, all the springs, etc for a complete brake job. I'm doing the same conversion now. I didn't do the BBP though since we can still find wheels like cragars from summit that are up to 15x8 in size. I went to the big yokes as well on the rear end and will do the same for the yoke sliding into the trans.