Spindles from a '61-4 (drum brakes) and '65-'66 (disc brakes) T-bird will not work on a '60-'64 Ford. Look into a disc brake conversion for '58-'60 T-birds, which used same spindles as '57-'64 full-size Fords.
You'd be better off to sell the T-bird disc brake setup to a restorer and put the money towards a more-compatible setup. The 4-piston Kelsey-Hayes brake calipers were also used on '67 T-birds, '65-'66 Fords and '65-'66 Mustangs, but require a unique wheel with deep offset and interior dimensions to clear the calipers.
I don't know if inner/outer bearings from the T-bird disc hubs will fit on full-size spindles, but would like to know what inner diameters are for reference.