Mike, my 928 knowledge is not much due to lack of interest but I do believe the hubs/discs/calipers are the same between 944 and 928. Your statement that the 944 hubs are not the same as the 928 but the 968 hubs are the same as 928 is interesting... because the 968 hubs are the same as the 944 hubs.

I guess one of us will actually have to look it up :silly:

AFAIK (brakes):

944 = 928
944 S2 = 928 S
944 Turbo (early) = 928 S4
944 Turbo (late) = 928 GTS