66 f350 2wd, 6lug drum to 8lug disc

[66cherryvalleyf350]

I have seen early 70's f250 drum to disc but not a lot for 66 f350. Will the early 70's f250 2wd hubs fit on the 66 f350 solid axle 2wd spindles? Basically wanting 8lug and disc brakes with the 66 f350 solid axle. Thanks