They will fit the axle, but unlike with Model A king pins you will place the thrust washer at the bottom of the axle. The steering arm will work but it will give unequal steering. The hole for the drag link rod end is centered between the mounting holes; if you look at a Ford steering arm say from a '32-'34 you will see that it "leads" the center-line of the axle by 3/4" (maybe more?). The reason it is in front of the c/l is so that a 90* angle will be formed at the intersection of the arm and the drag link. That geometry will give equal steering both right and left. The hot rod arm will work, but some don't like them for the reason stated.