KH spindle w/late rotors

Well this explains a lot. If you read http://www.moparaction.com/Tech/archive/disc-main.html

He talks about getting rid of the two piece rotor and using a one piece.

I don't get the 70-72 Spindle though, I thought they were all the same 65-72? The only reason I ask is I just did a brake conversion on my 64 Barracuda and I really don't like it much they are 76 dodge dart calipers, they are way to big I needed a spaced and had to grind some material down.

Where was the add for the adapter for the bearing?