OK - I am making this work (I think). I was using the 69 spindles, because the axle shafts fit into them, but it did not line-up the rotor where I needed it. The 72 spindles bolt up of course but the axle shafts do not fit into them, the rotor lines up perfect with the 72 spindle. If you look at the picture of the two spindles you can see that the 69 has a bushing and the 72 has a needle bearing.
I had the outer axle shafts turned down to fit the 72 spindles and they fit really nice. I'll be putting the axle shafts back together with new u-joints.