Beware of using stainless fasteners in mild steel. Over time, the stainless will react with the steel.( Look up dissimilar metals, electrolytic reaction) I would stick with steel fasteners and antiseize. On my 46 I used a 57 car diff. I knocked out the wheel studs, mig welded the holes,machined the axle face true, then re drilled to 6 bolt wheel pattern. Good luck with your project.