This info may be useful for the next person who wants to do a disc conversion on a closed knuckle 44.
http://www.circletracksupply.com/che...brake-kit.html
I am looking to do the same conversion on a '56 International S120 4X4 D44 closed knuckle axle. The Circle Track source has discs for 8 lug, but a phone conversation got the information that undrilled discs may be available, so I could set up the 6 lug I need it.