3/4 ton & 1 ton rotors the same?

[rwade]

I have some 3” drop spindles for a 73-91 one ton chevy truck. It has the dually rotors on it now, but for reasons of narrowing the track width I want to go to the single wheel 8 lug rotors. Seems easy to find 3/4 ton rotors but one ton single wheel rotors seem to be difficult. Will the 3/4 ton rotors work on the 1 ton spindles? Are the bearings compatible? If not, can anyone tell me a good source for the single wheel one ton rotors?

Thanks in advance for any info guys.

Wade