FZR 600 rear wheel to YZF600 rear wheel

I don't think the 750 will go intot he 600, besides the 750 alum. chassis is such a better piece than the 600 heavy steel frame.

The YZF hub is a lot wider than the F2/3 hub.

 

Got any more details on this? I have an SRAD swingarm on my FZR400 because it's the shortest swinger I could find that would let me fit a 5.5" easily. But if I could use the FZR400 swinger by machining the GSXR wheel that would be even better. Do you have any idea what needs to be done? Because the GSXR wheel is actually too thick to even fit between the sides of the swingarm. Let alone allow for spacers or caliper bracket.