993 rear calipers on late 944 alloy rear swing arms?

[56OVALI]

I have the Alloy rear arms and 993 calipers (on loan to see if they fit, I either have to pay for them or give them back), the calipers bolt up, but what rotor/disks do i use (I didn't get the discs with the allory arms, just the hubs)?

Does any one know the width of disk for the 993 rear?

Does any one know the width of the 944t rear disk?

Would the 993 rear rotors fit the alloy arms?

Please Help. Russ

Thanks,